大学英语4__课后选择题

Unit 1

答案（依题号依次是）：CCACD BDBAC CADCB ADDBA DCCDC DACD

1. They are hoping to ____ the Japanese market with their latest product.

A) transmit B) plunge

C) penetrate D) filter

2. Both the labor and the management made a lot of ____ and at last they came to an agreement.

A) sessions B) recessions

C) concessions D) conferences

3. A lot of ants are always invading my kitchen. They are a thorough ____.

A) nuisance B) trouble

C) worry D) anxiety

4. Out of ____ revenge (复仇), he did his worst to blacken her character and ruin her reputation.

A) perfect B) total

C) sheer D) thorough

5. I’ve already had one holiday in Africa, and I’m not ____ on going there again.

A) willing B) ready

C) eager D) keen

6. To call the music of another music-culture “primitive” is ____ one’s own standards on a group that does not recognize them.

A) putting B) imposing

C) forcing D) emphasizing

7. She cooked the meat for a long time so as to make it ____ enough to eat.

A) mild B) slight

C) light D) tender

8. The manager needs an assistant that he can ____ to take care of problems in his absence.

A) count in B) count on

C) count up D) count out

9. We love peace, yet we are not the kind of people to ____ to any military threat.

A) yield B) apply

C) resort D) appeal

10. What I hate most is making a great ____ about such a simple matter.

A) confusion B) initiative

C) fuss D) bark

11. Paul said he would give me a piece of cake if I stayed here, but I didn’t give in to the ____.

A) intention B) appeal

C) temptation D) charm

12. The first thing Jim did when he got off the train was to look for a(n) ____ because he had too much luggage with him.

A) porter B) employee

C) servant D) assistant

13. The speaker ____ his angry words with forceful movement of the hands.

A) associated B) connected

C) assisted D) accompanied

14. Don’t joke with Linda; she takes everything far too ____.

A) carefully B) gravely

C) seriously D) critically

15. The car won’t start because the battery has ____.

A) run up B) run down

C) run over D) run off

16. If a man is easily taken in by emotional traps, he will not be able to make ____ judgments.

A) sensible B) sensitive

C) sentimental D) sensational

17. Parents have a legal ____ to ensure that their children are provided with efficient education suitable to their age.

A) instinct B) influence

C) sympathy D) obligation

18. Space scientists believe that the black hole is ____, and would draw everything, even light, toward its center.

A) vacant B) empty

C) bare D) hollow

19. Any electric products sold in this famous department store will be ____ for one year.

A) protected B) guaranteed

C) preserved D) ensured

20. The inquiry found that the innocent civilians had been ____ to inhumane treatment for too long.

A) subjected B) attached

C) related D) resisted

21. ____ your long service to this country, we have decided to give you this gold watch as an expression of our thanks.

A) By means of B) By nature of

C) By way of D) By virtue of

22. Material abundance has been the life blood which has ____ Americans in their basic beliefs and values.

A) contributed B) provided

C) sustained D) favored

23. The planet’s surface temperature is a 100 degrees below zero centigrade at night, so that butter put outside will not ____.

A) thaw B) dissolve

C) melt D) harden

24. The thieves ____ the waste paper all over the room while they were searching for the diamond ring.

A) spread B) scratched

C) burned D) scattered

25. Joe had many regrets when he ____ the years he spent abroad.

A) looked up to B) looked down on

C) looked back on D) looked forward to

26. Cultural ____ indicates that human beings hand their languages down from one generation to another.

A) transformation B) transaction

C) transport D) transmission

27. People go to the church to ____ God.

A) worship B) pray

C) respect D) admire

28. There are strict rules ____ the use of chemicals in food.

A) reforming B) relating

C) regulating D) registering

29. The homeless ____ from the flooded town were helped by the Red Cross.

A) scouts B) saints

C) beggars D) refugees

Unit 2

答案（依题号依次是）：CCACD BDAAC CCDCB ADDBA DCCDA DCCAD

1. Jack’s shirt was burned by ____ from the fire.

A) spots B) spills

C) sparks D) sprays

2. The wood was so rotten that, when we pulled, it ____ into fragments.

A) broke off B) broke away

C) broke up D) broke through

3. We shall have to ____ the meeting until next week, I’m afraid.

A) postpone B) conduct

C) replace D) last

4. To our ____, Geoffrey’s illness proved not to be as serious as we had feared.

A) entertainment B) judgment

C) relief D) relaxation

5. The working of the machine ____ that of the human brain.

A) compromises with B) competes with

C) communicates to D) corresponds to

6. The attack was the latest in a series of border ____ in that area.

A) accidents B) incidents

C) events D) occurrences

7. The children will not be allowed to come with us if they don’t ____ themselves better.

A) direct B) accustom

C) adjust D) behave

8. The oppressed peasants rose up in armed ____.

A) revolt B) rebel

C) chaos D) challenge

9. I had to shake him several times to ____ him from his sleep.

A) rouse B) stimulate

C) motivate D) prompt

10. Three days after the trial the prisoner was ____ secretly, and the body was buried under a tree inside the prison.

A) murdered B) convicted

C) executed D) punished

11. His skin was ____ from years of working

outdoors.

A) elastic B) clumsy

C) coarse D) delicious

12. Three people were killed in a head-on ____ between a bus and a car.

A) collapse B) conflict

C) collision D) crush

13. Ruth has gone back to California ____. She will not return to the East.

A) for long B) before long

C) ever since D) for good

14. When the singer appeared, the audience started to ____ loudly.

A) claim B) crack

C) clap D) crash

15. I don’t know if you’ve heard, but there’s a ____ going around the office that Mr. Smith is leaving at the end of the month.

A) news B) rumor

C) saying D) proverb

16. I guess Jones didn’t have a chance to win the election. Almost all of the people in the city voted for his ____.

A) opponent B) candidate

C) colleague D) advocate

17. He was ____ of his friend’s reputation.

A) greedy B) controversial

C) competitive D) jealous

18. The newspaper uncovered a sex ____ involving several government officials.

A) shame B) conviction

C) rumor D) scandal

19. The dog waiting behind the gate looked so ____ that I did not dare to go in.

A) bold B) fierce

C) wild D) harmful

20. The workers there held a(n) ____ to call for better working and living conditions.

A) rally B) conjunction

C) episode D) riot

21. The protest march developed into a ____ when the police tried to stop it.

A) rebel B) strike

C) violation D) riot

22. He said he had ____ the performance of the new model and was surprised at what he had seen then.

A) endeavored B) demonstrated

C) witnessed D) judged

23. It is my ____ wish that you use this money to further your research.

A) intensive B) generous

C) earnest D) voluntary

24. He had been completely exhausted but felt considerably ____ after a meal and a rest.

A) renewed B) recreated

C) reshaped D) refreshed

25. In Britain today women ____ 44% of the workforce, and nearly half the mothers with children are in paid work.

A) make up B) build up

C) stand for D) conform to

26. The garden is ____ in a formal pattern.

A) laid up B) laid off

C) laid down D) laid out

27. There are several possible explanations for the greater job stability in Japan ____ the great job mobility in the United States.

A) contrary to B) in regard to

C) in contrast to D) with respect to

28. Gasoline is processed from ____ oil.

A) raw B) rough

C) crude D) tough

29. New York ____ second in the production of apples, producing 850,000,000 pounds this year.

A) ranked B) occupied

C) arranged D) classified

30. After reading the ____ of the play, the director made several changes.

A) scrape B) catalog

C) category D) script

Unit 3

答案（依题号依次是）：DBACB ABCAB AAADA CBDAC DDCCC BCBCA

1. We have had to raise our prices because of the increase in the cost of ____ materials. A) primitive B) rough C) original D) raw

2. The social security system provides ____ for retired citizens.

A) wages B) pensions

C) profits D) rewards

3. It is well-known that the retired workers in our country are ____ free medical care.

A) entitled to B) involved in

C) associated with D) assigned to

4. Although she was not very rich, she was quite ____ with her money.

A) noble B) flexible

C) liberal D) liable

5. He received a letter of thanks for his ____ of books to the Shakespeare library.

A) publication B) donation

C) acquisition D) quotation

6. The bus ran over the cliff because its ____ failed.

A) brakes B) controls

C) gears D) signals

7. Not long ago, a government official whom I know very well was ____ a bribery.

A) related to B) involved in

C) included in D) subjected to

8. They put in the highest ____ for the house.

A) currency B) proposal

C) bid D) purchase

9. A good hunting dog is ____ to every sound and movement in the field.

A) alert B) aware

C) cautious D) nervous

10. This diploma ____ that you have completed high school.

A) proves B) certifies

C) secures D) approves

11. He was accused of ____ vital secrets to the enemy.

A) leaking B) loosening

C) relieving D) issuing

12. Only the most sophisticated theories of modern physics can ____ this phenomenon.

A) account for B) count on

C) account of D) count for

13. At the end of his trial, he was ____ of murder.

A) convicted B) convinced

C) sentenced D) condemned

14. Most flowers will not ____ without sunshine.

A) cultivate B) boom

C) sustain D) thrive

15. The company has an employee ____ of everyone working for them.

A) profile B) acquaintance

C) administration D) acknowledgement

16. When Mary paid the bill, she was given a ____ for her money.

A) cheque B) ticket

C) receipt D) label

17. There is a whole ____ of bills waiting to be paid.

A) stock B) stack

C) number D) sequence

18. The members of the club ____ a plane to take them on holiday to France.

A) assembled B) dominated

C) monitored D) chartered

19. Frankfurt, Germany, is in one of the most ____ populated regions of Western Europe.

A) densely B) vastly

C) enormously D) largely

20. He’s well known in the ____ of foreign affairs.

A) settlement B) operation

C) realm D) scope

21. She ____ the sports page to find out who had won the game.

A) plunged B) perceived

C) sketched D) skimmed

22. The lighting of the Christmas tree was the ____ of the evening.

A) peak B) boom

C) summit D) highlight

23. We didn’t like the color of the curtains, and so we ____ them a beautiful dark green.

A) soaked B) sketched

C) dyed D) dipped

24. Bruce Stephen gripped the ____ wheel hard as the car bounced up and down.

A) stirring B) driving

C) steering D) rotating

25. Years of heavy burden and hard work

made him ____ at his early forties.

A) lower B) lean

C) stoop D) bow

26. Niagara Falls is a great tourist ____, drawing millions of visitors every year.

A) attention B) attraction

C) appointment D) arrangement

27. He ____ for the day when he would see his hometown again.

A) desired B) counted

C) longed D) urged

28. The insurance company paid him $ 10,000 in ____ after his accident.

A) installment B) compensation

C) substitution D) commitment

29. The noise ____ until she couldn’t stand it any longer.

A) set up B) rang up

C) built up D) called up

30. They ____ for a progressive cause and died willingly.

A) bled B) wounded

C) devoted D) departed

Unit 4

答案（依题号依次是）：CCACD CDDAB BDCAD ABDBD ABCDA BAACD

1. The class remained ____ when the teacher asked a formidable question.

A) clumsy B) deaf

C) dumb D) still

2. The captured criminals were ____ in chains through the streets.

A) exhibited B) displayed

C) paraded D) revealed

3. As a summary, the long story was ____ into

a few sentences.

A) condensed B) condemned

C) concealed D) concentrated

4. She took an ____ course in cooking before her marriage.

A) integral B) intentional

C) intensive D) intense

5. Deeply cursed with prison life, the prisoners became ____ for breakout.

A) discarded B) disappointed

C) intensive D) desperate

6. Being very hungry, she gave the two dishes

a thorough ____.

A) script B) click

C) lick D) scrape

7. The problem with the country is how to lift its economy out of ____.

A) reservation B) recreation

C) reversion D) recession

8. Be careful with a cat. It may ____ you if you make it angry.

A) punch B) scrape

C) tear D) scratch

9. He ____ much of his time in learning the new language.

A) invested B) involved

C) invented D) integrated

10. The farmers were more anxious for rain than the people in the city because they had more at ____

A) danger B) stake

C) loss D) threat

11. The ____ on this apartment runs out in a year’s time.

A) treaty B) lease

C) agenda D) deadline

12. He has put his car entirely at our ____ for the holiday.

A) usage B) application

C) disposition D) disposal

13. The town planning commission said that their financial outlook for the next year was optimistic. They expected increased tax ____.

A) efficiency B) privileges

C) revenues D) validity

14. If you ____ in taking this attitude, we’ll have to ask you to leave.

A) persist B) insist

C) resist D) assist

15. The rest of the family had nearly reached the river, but Jane was ____ behind as usual.

A) declining B) delaying

C) lacking D) lagging

16. Communication is the process of ____ a message from a source to an audience via a channel.

A) transmitting B) submitting

C) transforming D) switching

17. The computer has become smaller and cheaper and ____ more available to a greater number of people.

A) yet B) hence

C) still D) nevertheless

18. Take one ____ of this cough-mixture three times a day.

A) therapy B) prescription

C) injection D) dose

19. John Smith is the New York Times ____ at Beijing.

A) resident B) correspondent

C) ambassador D) applicant

20. Today, many ____ products have replaced natural ones.

A) practical B) compound

C) raw D) synthetic

21. Improved consumer confidence is ____ to an economic recovery.

A) crucial B) competitive

C) acute D) satisfactory

22. It would be wise to ____ your property against storm damage.

A) ensure B) insure

C) integrate D) guarantee

23. The Main Street is the ____ stop for this bus route.

A) end B) closing

C) terminal D) concluding

24. Over a third of the population was estimated to have no ____ to the health service.

A) assessment B) assignment

C) exception D) access

25. Very few scientists ____ completely new answers to the world’s problems.

A) come up with B) come out

C) come round D) come up to

26. After she qualified as a lawyer, she decided to specialize ____ contract law.

A) on B) in

C) with D) of

27. A prime minister cannot expect to have much time to ____ to purely personal matters.

A) devote B) reserve

C) concentrate D) spare

28. The whole idea ____ from a casual remark.

A) evolved B) involved

C) generated D) adapted

29. There are not many teachers who are strong ____ of traditional methods in English teaching.

A) sponsors B) contributors

C) advocates D) performers

30. No longer are contributions to computer technology confined to any one country: ____ is this more true than in Europe.

A) hardly B) little

C) seldom D) nowhere

Unit 5

答案（依题号依次是）：DBCAB CACDC CBDCD ABADA BBDBC DAAAC

1. It took him several months to ____ the wild horse.

A) tend B) cultivate

C) breed D) tame

2. I don’t think it was an accident. He did it on ____.

A) choice B) purpose

C) intention D) design

3. The manager ____ the letter to his secretary, who wrote it down in short hand.

A) passed B) copied

C) dictated D) declared

4. He was of ____ birth; his parents had no money and lived poorly.

A) humble B) harsh

C) wicked D) wrecked

5. On the way to school, there was no shelter from the rain, so the students were soaked ____.

A) wet B) to the skin

C) on the skin D) over

6. The smoke from the burning building almost ____ the firemen and forced them to wear masks.

A) blocked B) provoked

C) choked D) stroked

7. He smiled again with an air of ____ contentment and said, “It’s the first time I’ve ever done what I wanted to do.”

A) supreme B) superficial

C) supplementary D) superior

8. We might say that ____ has been done when a man’s innocence and guilt has been proved beyond doubt.

A) judgment B) jury

C) justice D) wrong

9. He has given all the facts at great ____ so that you may judge for yourself.

A) detail B) extent

C) degree D) length

10. She hasn’t found an apartment yet; she’s staying with her aunt ____.

A) for a long time B) for the first time

C) for the time being D) from time to time

11. On receiving sound waves, our eardrums ____ and cause minute electrical signals to be sent to the brain.

A) shiver B) shake

C) vibrate D) tremble

12. Coal and petroleum are called ____ substances, because they are the remains of living things.

A) superb B) organic

C) vigorous D) rotten

13. Preservatives (防腐剂) are added to bread to keep it from getting ____.

A) static B) stained

C) stable D) stale

14. Here were cycles of industrial prosperity which always collapsed into industrial ____.

A) booms B) nightmares

C) depressions D) disadvantages

15. All men or women, young or old, short or tall, should not ____ any form of discrimination, because sooner or later we are all likely to fall victim to this dangerous practice.

A) resist B) sustain

C) undergo D) tolerate

16. Generally, it is only when animals are trapped that they ____ to violence to escape.

A) resort B) appeal

C) proceed D) incline

17. In the end, a ____ of six men and six women deliberated four days and found him guilty of murder.

A) panel B) jury

C) court D) legislation

18. Although his ____ ideas were difficult to understand, I managed to go through the whole book.

A) abstract B) practical

C) concrete D) superficial

19. During a visit to the Forbidden City, she was heard to ____ “it’s so beautiful” three times.

A) have grasped B) have gripped

C) have claimed D) have exclaimed

20. This meat is rather tough; you have to ____ it for a long time.

A) chew B) bite

C) eat D) swallow

21. We cannot judge a person simply on the ____ of his education.

A) condition B) basis

C) principle D) base

22. Don’t let the child play with scissors ______ he cuts himself.

A) only if B) in case

C) now that D) so that

23. I’d grown ____ of the place and it was difficult to leave.

A) considerate B) accustomed

C) attached D) fond

24. He had no qualifications; ____, he got the job.

A) but B) nevertheless

C) despite D) instead

25. Don’t forget to ____ the letter before you post it.

A) stick B) fasten

C) seal D) enclose

26. The child got a ____ from his mother for being rude.

A) slip B) strap

C) snap D) slap

27. The bond of true affection had pulled us—six very different men from six very different countries—across Antarctica; we proved in the end that we weren’t very different ____.

A) after all B) as usual

C) in particular D) for all

28. The couple separated because they were not ____.

A) compatible B) equivalent

C) consistent D) uniform

29. He made several interesting discoveries when he ____ a monkey recently.

A) experimented on B) tried on

C) experimented with D) tried with

30. Their specialities ____ from Chinese literature, history and philosophy to law, sciences, and traditional Chinese medicine.

A) alter B) separate

C) range D) differ

Unit 6

答案（依题号依次是）：CCBDC DBBDC CDBDB CDABC BADAA DBDCB

1. I said I would do it and I ____ my promise.

A) stand up to B) stand for

C) stand by D) stand up for

2. Mr. Morgan can be very sad ____, though in public he is extremely cheerful.

A) by oneself B) in person

C) in private D) as individual

3. Color-blind people often find it difficult to ____ between blue and green.

A) separate B) distinguish

C) compare D) contrast

4. Keeping what belongs to another ____ to stealing.

A) applies B) accounts

C) attaches D) amounts

5. The time taken on your journey, together with your ____, will enable you to calculate how far you have travelled.

A) distance B) rate

C) speed D) motion

6. The newly-built Science Building seems ____ enough to last a hundred years.

A) static B) sophisticated

C) steady D) substantial

7. Helen groups all people into two ____: those she likes and those she dislikes.

A) specimens B) categories

C) catalogs D) sectors

8. Fry rejected the accepted ____ of behavior and married one of his servants.

A) hint B) code

C) signal D) advice

9. We couldn’t see much because there was only a ____ light in the room.

A) delicate B) disguised

C) depressed D) dim

10. The truck driver was proved ____ of the crime.

A) indifferent B) independent

C) innocent D) inevitable

11. His argument does not suggest that mankind can ____ to be wasteful in the utilization of these resources.

A) resort B) grant

C) afford D) entitle

12. He takes a 10% ____ on all the sales he makes: if he sells goods worth $100 he gets $10.

A) portion B) proportion

C) concession D) commission

13. Putting in a new window will ____ cutting away part of the roof.

A) include B) involve

C) contain D) comprise

14. The authorities ____ tourists from visiting the secret factory.

A) banged B) bound

C) bonded D) banned

15. There are certain ____ on which you must interrupt people who are in the middle of doing something.

A) conditions B) occasions

C) situations D) environments

16. We had to ____ a lot of noise when the children were at home.

A) go in for B) hold on to

C) put up with D) keep pace with

17. The new regulation does not ____ until the first of March.

A) take into effect B) get into effect

C) put into effect D) go into effect

18. After dinner, the two men ____ into the study where they could talk freely.

A) retired B) restored

C) restrained D) resigned

19. Tom could not ____ the last problem on the arithmetic test.

A) fill out B) figure out

C) find out D) filter out

20. Adam has a good position and will pay you back ____.

A) lastly B) inevitably

C) eventually D) equally

21. The careless man received a ticket for speeding. He ____ have driven so fast.

A) can’t B) shouldn’t

C) wouldn’t D) mustn’t

22. While crossing the mountain area, all the men carried guns lest they ____ by wild animals.

A) should be attacked B) must be attacked

C) had been attacked D) would be attacked

23. Anna was reading a piece of science

fiction, completely ____ to the outside

world.

A) having been lost B) losing

C) to be lost D) lost

24. They always give the vacant seats to ____

comes first.

A) whoever B) who

C) whomever D) whom

25. He said that the driver must have had an

accident; otherwise he ____ by then.

A) would have arrived B) should arrive

C) must have arrived D) would arrive

26. Such crimes may be so complex that

months or years go by before anyone

____ them.

A) would have discovered B) discovered

C) will discover D) discovers

27. If I ____ harder at school, I would be

sitting in a comfortable office now.

A) worked B) had worked

C) were to work D) were working

28. ____ much is known about what occurs during sleep, the precise function of sleep and its different stages remains largely in the realm of assumption.

A) Because B) Since

C) For D) While

29. Professor Wang, ____ for his informative

lectures, was warmly received by his

students.

A) knowing B) to be known

C) known D) having known

30. It is high time that such practices ____.

A) are ended B) were ended

C) be ended D) must be ended

Unit 7

答案（依题号依次是）：CBDAD CADAA DDABA BCDAD CDABC DAACD

1. A friendship may be ____, casual, situational or deep and lasting.

A) identical B) original

C) superficial D) critical

2. The weatherman broadcasts the ____ in temperature twice a day.

A) adjustment B) variation

C) variety D) modification 3. The teacher told the students in her conversation class to ____ their talk to the topic.

A) concern B) condense

C) concentrate D) confine

4. On turning the corner, we saw the road ____ steeply.

A) descending B) departing

C) depressing D) decreasing

5. Many examples and extra grammatical information are among the special ____ of this dictionary.

A) traits B) marks

C) marks D) features

6. When I ____ her with the evidence, the girl admitted that she was wrong.

A) conveyed B) displayed

C) confronted D) consulted

7. Millions of peasants have ____ to the cities.

A) migrated B) accelerated

C) illustrated D) integrated

8. They are trying to ____ the waste discharged by the factory for profit.

A) expose B) exhibit

C) exhaust D) exploit

9. The police are ____ the records of all those involved in the crime.

A) looking into B) looking out

C) looking after D) looking on

10. I suffered from mental__________ because of stress from my work.

A) fatigue B) damage

C) relief D) release

11. The car salesman took the customer for a drive in the new model in order to ____ its improved features.

A) advertise B) exhibit

C) reveal D) demonstrate

12. On the evening in ____ he had been making all sorts of complicated calculations.

A) issue B) hand

C) concern D) question

13. Proper clothes ____ for much in most professions, so the job applicant should take care to appear appropriately dressed in the interview.

A) count B) value

C) impress D) imply

14. She ____ through the mist, trying to find the right path.

A) glanced B) peered

C) gazed D) scanned

15. To understand the ____ of a situation, we have to know something about that kind of situation.

A) implications B) references

C) relations D) findings

16. The show was ____ being a failure; it was

a great success.

A) by far B) far from

C) far apart D) so far

17. That is our ____ proposal, and no other changes will be considered.

A) thorough B) complete

C) ultimate D) extreme

18. The former mayor of the city was always holding a ____ against new immigrants and made life difficult for them there.

A) priority B) discomfort

C) disadvantage D) prejudice

19. Soon the pilot was sent on a bombing ____ over Germany.

A) mission B) performance

C) delivery D) tour

20. They have ____ what I suspected long ago.

A) assured B) ensured

C) convinced D) confirmed

21. Investigators agreed that passengers on the airliner ____ at the very moment of the crash.

A) should have died B) must be dying

C) must have died D) ought to die

22. The residents, ____ had been damaged by the fire, were given help by the Red Cross.

A) all of their homes B) all their homes

C) whose all homes D) all of whose homes

23. These people once had fame and fortune; now ____ is left to them is utter poverty.

A) all that B) all what

C) all which D) that all

24. We left the meeting, there obviously ____ no point in staying.

A) were B) being

C) to be D) having

25. The owner and editor of the newspaper ____ the conference.

A) were attending B) were to attend

C) is to attend D) are to attend

26. Who would you rather ____ with you, George or me?

A) going B) to go

C) have gone D) went

27. What a lovely party! It’s worth ____ all my life.

A) remembering B) to remember

C) to be remembered D) being remembered

28. Although a teenager, Fred could resist ______ what to do and what not to do.

A) being told B) telling

C) to be told D) to tell

29. There has been a great increase in retail sales, ______?

A) does there B) isn’t there

C) hasn’t there D) isn’t it

30. How is it ______ your roommate’s request and yours are identical?

A) if B) so

C) what D) that