情态动词的被动语态
情态动词及其被动语态
中考复习八 情态动词及其被动语态（一）情态动词概说1．情态动词也是“辅助性”动词，用来表示说话人的语气或情态。
情态动词所表示的情态有：请求、命令、允诺、可能、需要、敢于、愿望、义务、能力等。
2．情态动词本身有词义，但词义不完全，不能单独用作谓语，没有人称和数的变化，且后面只跟动词原形。
如：她会唱英文歌曲。
She cans sing an English song.（F）She can sings an English song.（F）She can sing an English song.（T）3．有些情态动词的过去时与其原形相同，有些与原形不同。
(1) 与原形相同的有：must --- must ought to --- ought to(2) 与原形不同的有：can --- could will --- wouldmay --- might shall --- shouldneed --- needed dare --- dared have to --- had to4．大多数的情态动词后面可以用动词不定式（多不带to）的进行时、完成时或被动形式，如：may, can, must等。
（二）情态动词的种类：（见下表）原 形过去式词 义can could能may might可以（或许）must must(had必须（不得不）to)will would愿意shall should应该need needed需要dare dared敢于（三）情态动词的否定形式：cannot --- can’t could not --- couldn’t may not---mayn’tmight not--- mightn’t must not --- mustn’t will not --- won’twould not --- wouldn’t need not --- needn’t shall not --- shan’tshould not --- shouldn’t ought not --- oughtn’t dare not --- daren’t（四）常用情态动词的用法：1．can与could1）． can（1）表示体力或脑力方面的“能力”，也能表示根据客观条件能做某事的“能力”。
情态动词的被动语态
必须
The book should be read by many people.
有必要
The book is required to be read by many people.
重要
It is essential that the book be read by many people.
表示义务或禁止
选择题解析
02
填空题解析
03
改错题解析
这道题考查的是情态动词的被动语态 。根据时间状语从句"by the time you came back"可知，主句应该用 过去完成时，表示"在你回来之前书已 经被……"。因此，正确答案为"had been"。
这道题考查的是将来时的被动语态。 根据时间状语"by the end of this year"可知，主句应该用将来时，表示 "到今年年底前项目将会被……"。因 此，正确答案为"will be completed" 。
练习题
01
02
03
选择题
The book _______ by the time you came back.
填空题
The project _______ (完 成) by the end of this year.
改错题
The letter has written (改为被动语态)
答案解析
01
表示能力或可能性
能够
The book can be read by many people.
会
The book will be read by many people.
情态动词的被动语态例句
情态动词的被动语态例句情态动词的被动语态，听起来是不是有点高深？别担心，今天咱们就来聊聊这个话题，轻松搞定它。
什么是情态动词？简单来说，就是那些表示可能、能力、必要等的动词，比如“can”、“must”、“should”等等。
然后，什么是被动语态？嘿，简单点说，被动语态就是强调动作接受者，而不是动作发出者。
听上去有点儿复杂，但实际上，咱们生活中随处可见这样的用法。
比如说，“The cake can be eaten.” 这句话的意思就是“这个蛋糕可以被吃掉。
” 哇，听着就让人有种饥饿的感觉，是吧？想象一下，一个美味的巧克力蛋糕摆在桌子上，你完全忍不住，心里想着：“这蛋糕肯定要被吃掉。
” 说到这里，我的口水都快流下来了。
还有像“Homework must be finished before dinner.” 听起来就像个家长的声音，对吧？这句话的意思是“作业必须在晚餐前完成。
” 一听到这，很多学生可能都想哭了。
真是的，谁喜欢做作业啊，尤其是在香喷喷的晚餐面前。
再来看看“Loud music should be turned down.” 这句话就是“大声的音乐应该被调小。
” 想象一下，在家聚会的时候，朋友们都在疯狂地摇摆，结果邻居敲门了，满脸不悦，指着你说：“这音乐应该被调小！”哎呀，那场面，真是既尴尬又搞笑。
然后你心里想着：“不就是听个音乐嘛，怎么还惹到邻居了？”这就是生活的奇妙之处。
再说说“Lessons can be learned from mistakes.” 这句子有点深奥，但其实意思就是“错误是可以被吸取教训的。
” 有些时候，咱们都可能在生活中犯错，嘿，别担心，错了就是错了，关键是能不能从中学到点东西。
想想那些经典的失败故事，像爱迪生发明灯泡时试了上千种材料，结果还是给他找到了答案。
生活就是一场实验，学会从失败中站起来，真的是一门重要的艺术。
再来个轻松点的例子，“The dishes need to be washed.” 这句子你肯定听过吧，意思就是“碗碟需要被洗了。
情态动词的被动语态
情态动词的被动语态情态动词是英语中常用的一类辅助动词，用于表示说话人的态度、情感或者提出建议、推测等等。
被动语态是英语中的一种语法结构，用于描述某个动作或者状态的受事者，而不是执行者。
本文将探讨情态动词的被动语态的用法和一些注意事项。
一. 情态动词的基本介绍情态动词包括can、could、may、might、shall、should、will、would、must等。
这些词在句子中起到辅助动词的作用，用来表示能力、可能性、推测、意愿等含义。
二. 情态动词的被动语态构成对于情态动词的被动语态构成，需要将情态动词后接的动词原形改为过去分词形式，并在情态动词后添加be动词的相应形式。
下面是几个例子：1. can的被动语态：can be + 过去分词- Active: He can repair the car.- Passive: The car can be repaired by him.2. may的被动语态：may be + 过去分词- Active: He may finish the work.- Passive: The work may be finished by him.3. must的被动语态：must be + 过去分词- Active: He must complete the task.- Passive: The task must be completed by him.三. 情态动词被动语态的用法情态动词的被动语态可以用来表示能力、可能性、推测和义务等。
下面是一些常见的用法：1. 表示能力：can、could的被动语态- The documents can be understood by everyone.- The problem could be solved by our team.2. 表示可能性：may、might的被动语态- The package may be delivered tomorrow.- The flight might be canceled due to bad weather.3. 表示推测：must的被动语态- The missing keys must be somewhere in the house.4. 表示要求、命令：should、must的被动语态- The report should be submitted by the end of the week.- The rules must be followed by all participants.四. 注意事项在使用情态动词的被动语态时，需要注意以下几点：1. 情态动词后接的动词应该使用过去分词形式。
被动语态的九种结构
被动语态的九种结构被动语态是英语中的一种语法结构，用于强调动作的承受者或对象，而不是执行者。
以下是被动语态的九种常见结构：1.一般现在时的被动语态：be + 过去分词例句：The letter is written by Tom.（这封信是汤姆写的。
）2.一般过去时的被动语态：was/were + 过去分词例句：The book was published last year.（这本书是去年出版的。
）3.一般将来时的被动语态：will be + 过去分词例句：The project will be completed by next month.（这个项目将在下个月完成。
）4.现在进行时的被动语态：am/is/are being + 过去分词例句：The house is being decorated by the workers.（这栋房子正在被工人们装饰。
）5.过去进行时的被动语态：was/were being + 过去分词例句：The car was being repaired when I arrived.（我到达时，汽车正在被修理。
）6.现在完成时的被动语态：has/have been + 过去分词例句：The movie has been watched by millions of people.（这部电影已经被数百万人观看过。
）7.过去完成时的被动语态：had been + 过去分词例句：The assignment had been submitted before the deadline.（作业已在截止日期之前提交。
）8.情态动词的被动语态：情态动词 + be + 过去分词例句：The proposal should be considered carefully.（这个提案应该被认真考虑。
）9.进行时的情态动词被动语态：情态动词 + be + being + 过去分词例句：The problem must be being discussed by the team.（这个问题一定正在团队中被讨论。
含情态动词的被动语态结构例句
含情态动词的被动语态结构例句被动语态是英语语法中的一个重要部分，它用来表示主语是动作的接收者，而不是执行者。
而含情态动词的被动语态结构更是一种常见的语法结构，它能够更准确地表达说话者的情感和态度。
本文将为大家介绍含情态动词的被动语态结构，并提供一些例句以供参考。
一、什么是含情态动词的被动语态结构含情态动词的被动语态结构是指在被动语态中使用情态动词，以表达说话者的情感和态度。
情态动词包括can、could、may、might、must、shall、should、will、would等。
在使用含情态动词的被动语态结构时，需要注意动词的时态、语态和人称的变化。
二、含情态动词的被动语态结构的用法1. 表示可能性当含情态动词的被动语态结构中使用may、might、could等动词时，可以表示可能性。
例句：The package may be delivered tomorrow.这个包裹可能明天送到。
The meeting might be postponed due to bad weather.会议可能因为天气不好而延期。
2. 表示推测当含情态动词的被动语态结构中使用must、should等动词时，可以表示推测。
例句：The letter must have been lost in the mail.这封信一定是在邮递过程中丢失了。
The project should have been finished by now.这个项目现在应该已经完成了。
3. 表示义务和责任当含情态动词的被动语态结构中使用must、should等动词时，可以表示义务和责任。
例句：The report must be submitted by Friday.这份报告必须在周五之前提交。
The students should be given more opportunities to express their opinions.应该给学生更多表达意见的机会。
被动语态的用法
被动语态的用法1.一般现在时的被动语态构成为：is / am / are + 及物动词的过去分词。
例如：我们的教室每天都被打扫。
我被要求努力研究。
刀子用于切割物品。
2.一般过去时的被动语态构成为：was / were + 及物动词的过去分词。
例如：去年建了一家新商店。
恐龙蛋很久以前就被放置了。
3.现在完成时的被动语态构成为：has / have + been + 及物动词的过去分词。
例如：这本书已经被翻译成了很多种语言。
很多国家已经发射了许多人造卫星。
4.一般将来时的被动语态构成为：will + be + 及物动词的过去分词。
例如：我们城市将会建造一家新医院。
明年将会种更多的树。
5.含有情态动词的被动语态构成为：情态动词 + be + 及物动词的过去分词。
例如：年轻的树必须经常浇水。
你的错误应该立即纠正。
门可能被从里面锁上了。
你的作业可以明天交。
6.现在进行时的被动语态构成为：am / is / are + being + 及物动词的过去分词。
例如：___正在修理我的自行车。
现在我的自行车正在被___修理。
他们正在那里种树。
现在树正在被他们种植。
1.不及物动词没有被动语态。
What will happen in 100 years。
Dinosaurs disappeared about 65 n years ago.2.有些动词用主动形式表示被动意义。
___.3.感官动词或使役动词使用省略to的动词不定式。
在主动语态中不带to，但变为被动语态时，须加上to。
例如：make somebody do something → somebody + be + made to do something。
see somebody do somethi ng → somebody + be + seen to do something。
A girl saw my wallet drop when she passed by。
含有情态动词的被动语态
含有情态动词的被动语态1.掌握含有情态动词的被动语态的基本构成及重点用法；2.能在具体的语境中灵活运用本节课的内容。
含有情态动词的句子，在改为被动语态后应该在情态动词后加上助动词be，结构为“情态动词+be+过去分词”。
We can change water into ice.我们可以把水变成冰。
Water can be changed into ice by us.水可以被我们变成冰。
You must hand in your papers after class.下课后你们必须把试卷交上。
Your papers must be handed in after class by you.试卷必须在下课后由你们交上。
[注意]①某些结构类似被动语态，但实际上是主系表结构be covered with 被……所覆盖be interested in 对……感兴趣be surprised at 对……感到吃惊be known to 为……所知be amazed at 对……感到惊讶be filled with 充满be worried about 对……感到担心①主动句中在感官动词see，hear，watch，feel，notice等及使役动词let，make，have等后跟省略to的不定式，变为被动句时，必须加上不定式符号to。
I heard her sing an English song.我听到她唱了一首英文歌曲。
She was heard to sing an English song.她被听到唱了一首英文歌曲。
We saw them go upstairs.我们看到他们到楼上去了。
They were seen to go upstairs.他们被看到去了楼上。
1．（2023·黑龙江齐齐哈尔·统考中考真题）— Why do the elephants in Thailand have to ________?— Because humans there catch them for their ivory to make money.A．protect B．be protected C．are protected2．（2023·江西上饶·校联考一模）—Mom, could I take out the rubbish?—Sure. But it ________ into different kinds for recycling first.A．separates B．separated C．was separated D．should be separated 3．（2023·湖南湘西·统考一模）Food __________ in a cool place in summer.A．must keep B．must be kept C．mustn’t keep4．（2023·山东菏泽·统考二模）On several streets in Zibo, lines ________ outside barbecue (烧烤) restaurants. Sometimes the lines stretch (伸展) for more than 100 meters on the weekend.A．can be seen B．can see C．see5．（2023·山东淄博·统考二模）The old people should ________ by us.A．be take good care of B．take good care ofC．be taken good care of D．took good care of6．（2023·江苏南通·统考一模）—How many books can ________ at a time, Mrs Green?—At most three. And you can ________ them for ten days before you must return or renew them.A．borrow; keep B．be borrowed; keep C．borrow; borrow D．be borrowed; borrow 7．（2023·湖南邵阳·统考一模）Shy students should ________ to be brave enough to speak in public.A．be encouraged B．are encouraged C．encouraged8．（2023春·湖北武汉·九年级统考阶段练习）—Students ________ to behave themselves in the public places. —This is an important social rule for them to keep.A．required B．have required C．will require D．should be required9．（2023春·黑龙江绥化·九年级校联考阶段练习）The tree must ________ three times a week.A．water B．is watering C．be watered10．（2023·上海·九年级专题练习）These flowers ________ three times a week in such hot weather, or they may die.A．should water B．shouldn’t water C．should be watered D．shouldn’t be watered 11．（2023·山东滨州·统考二模）—What's the meaning of the activity "Let's Save"?—Paper ________ in everyday life.A．should waste B．shouldn't waste C．shouldn't be wasted D．should be wasted12．（2023春·全国·九年级专题练习）—It's difficult to get to the other side of the river.—I think a bridge ________ over the river.A．should be built B．should buildC．will build D．has built13．（2022春·九年级单元测试）A lot of teenagers think as they are getting older they ________ to make their own decisions.A．should allow B．shouldn’t allow C．should be allowed D．shouldn’t be allowed 14．（2022·湖北黄冈·统考二模）—How should we deal with waste bottles?—Our teacher tells us they should be ________ good use.A．put B．put to C．to put D．puts15．（2022秋·广西河池·九年级统考期末）In order to make our city more beautiful, more trees and flowers________ every year.A．are planting B．should be planted C．should plant D．will plant16．（2022秋·湖南怀化·九年级统考期末）No matter how many difficulties we have, I believe all problems________ in the end.A．can solve B．can be solved C．be solved17．（2022秋·重庆江津·九年级统考期末）Lisa is seriously ill. I think she should ________ to the hospital as soon as possible.A．take B．be taken C．is taken D．was taken18．（2022·黑龙江哈尔滨·哈尔滨风华中学校考三模）Every minute should ________ to good use. Only in this way can we save more time to practice.A．put B．be put C．putting19．（2022秋·河北石家庄·九年级石家庄市第四十二中学校考期中）Food safety is very important to us. More rules about it ________ in the future.A．have made B．should make C．were made D．should be made 20．（2022·黑龙江大庆·统考模拟预测）Don’t litter waste here, boy. Look at the sign: “Rubbish ________ into the bin.”A．throws B．must throw C．must be thrown21．（2022·云南红河·统考二模）—In my opinion, teenagers ________ to decide for themselves.—I agree with you. It can help develop children’s independence.A．should allow B．may not allow C．should be allowed D．maybe allowed 22．（2022·贵州毕节·模拟预测）The old men and the children must ________ in our country.A．take good care B．be taken good care of C．take care of D．be taken good care23．（2022秋·江苏南通·九年级校考阶段练习）— When is National Public Memorial Day（国家公祭日）?— On December 13th. And the public can ________ the hard days in the past.A．be reminded B．remind of C．be reminded of D．remind24．（2022秋·山东东营·九年级东营市东营区实验中学校考阶段练习）—Please come back earlier, honey!—I’m not a child! I should ________ what to do!A．be told B．not be told C．tell D．not tell25．（2022·四川达州·统考模拟预测）—This math problem ________ in half an hour.—Don’t worry. Mr. Wang is good at math. He can make it.A．is working out B．would work out C．has worked out D．should be worked out 26．（2022·江苏镇江·模拟预测）The light in the room ________ before you leave.A．must turn off B．will turn off C．must be turned off27．（2022秋·九年级课时练习）—We are in trouble now. I have no idea ________.—Neither do I. We have to ask for help.A．how can the problem be solved B．how the problem can be solvedC．how can we solve the problem D．how the problem can solve28．（2022·重庆开州·统考一模）Jenny thinks that the teenagers _______ to choose their own clothes.A．allow B．allowed C．are allowing D．should be allowed 29．（2022·湖北武汉·模拟预测）Nearly everything produced in the world ________ on the streets of Chang’an during the Tang Dynasty（朝代）.A．is found B．were found C．have been found D．could be found30．（2022秋·九年级课时练习）We shouldn’t ________ aliens.A．be controlled by B．is controlled by C．are controlled by D．be control by31．（2022秋·陕西西安·九年级交大附中分校校考期中）—Tom is always careless with his school work. Could you help him?—No problem! I think he ________ to think twice before starting.A．should be told B．shouldn’t be told C．should tell D．shouldn’t tell32．（2022秋·湖北武汉·九年级湖北省水果湖第一中学校考期中）When Kang Jian was travelling in the US, he noticed that a great many of everyday things produced in China _______ in the stores.A．are found B．have been found C．will be found D．could be found33．（2022秋·上海奉贤·九年级统考期中）The flowers _______ often.A．must be water B．must be watered C．must watered D．must water34．（2022秋·吉林长春·九年级统考期末）Beijing can ________ in the photo taken by Nie Haisheng from the space station.A．see B．saw C．seen D．be seen35．（2022秋·吉林通化·九年级统考期末）In order to help those poor children, more schools should ________ in the poor areas.A．build B．be built C．be build36．（2022秋·广西贵港·九年级统考期末）—You must be more careful, Jenny.—I see. The same mistake I’ve ever made ________ from now on.A．should be avoided B．is avoided C．should avoid D．avoids 37．（2022秋·河北石家庄·九年级统考期末）Thanks should ________ in time when someone helps you.A．express B．expressed C．be expressed D．have expressed38．（2022秋·山东济南·九年级统考期末）Teenagers should ________ to smoke. It’s too bad for their health.A．not allow B．allow C．not be allowed D．be allowed39．（2022·九年级单元测试）During the Tang Dynasty, nearly everything produced in the world ________ on the streets of Chang’an.A．is found B．had been foundC．could be found D．would be found40．（2022·九年级单元测试）Don’t put off today’s work till tomorrow. I mean, today’s work must ________today.A．be doing B．be done C．do D．done41．（2022·黑龙江鸡西·校考二模）—What did Miss Zhang say to you just now?—She said that all the books should ________ to the library on time.A．be returned B．return C．be returning42．（2022·四川成都·统考二模）The trees ________ behind our house next Tree Planting Day.A．were planted B．are planted C．may be planted43．（2022秋·湖南怀化·九年级统考期末）Sixteen-year-olds should not ________ to drive.A．allowing B．allow C．be allowed44．（2022·湖北武汉·统考三模）Thanks to my parents, when I was young, I ________ very well wherever I lived.A．are looked after B．have been looked afterC．would be looked after D．could be looked after45．（2022·辽宁沈阳·统考二模）A lot of teenagers think as they are getting older they ________ to make their own decisions.A．should allowed B．shouldn’t allowC．should be allowed D．shouldn’t be allowed46．（2022·湖北武汉·校考模拟预测）Nearly everything produced in the world __________ on the streets of Chang’an during the Tang Dynasty (朝代).A．is found B．has been found C．would be found D．could be found47．（2022·全国·九年级专题练习）—Who’s that boy in a black mask in the photo, John？—It’s my brother. This photo ________ in February when he was a volunteer.A．might take B．can tookC．is taken D．might be taken48．（2022·四川成都·模拟预测）The little baby ________ good care of. Don’t let him here by himself.A．should take B．should took C．should be taken49．（2022·四川成都·模拟预测）Teenagers ________ to manage their time properly. Time management is an important skill for them.A．should be asked B．should ask C．could be asked50．（2022春·山东青岛·九年级山东省青岛实验初级中学校考开学考试）—I ________ a fruit salad an hour ago. Can it ________ now?—One more minute, please.A．have paid for; serve B．ordered; be served C．have ordered; be served D．paid; serve。
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情态动词的被动语态1．Do let your mother know the truth. She appears________ everything.A．to tellB．to be toldC．to be tellingD．to have been told2．Visitors_ _______not to touch the exhibits（展品）.A．will requestB．requestC．are requestingD．are requested3．Mr. Lopes was much disappointed（失望）to find the bike he had had_ _______went wrong again.A．it repairedB．repairedC．repaired itD．to be repaired4．—Why did you come by taxi?—My bike broke down last night and I ________it repaired.A．didn't haveB．don't haveC．won't haveD．haven't had5．Your clothes need________ .________she wash them for you?A．to be washed; shallB．To wash; shallC．washing; WillD．being washed; Will6．This kind of cloth ________well.A．washB．is washedC．washesD．washing7．—What do you think of the speech?—The speaker said almost nothing worth________.A．listening B．being listened to C．listening toD．being listening8．Bob, quickly get this film ________.I want to know if this camera works well.A．washed B．developed C．printed D．shown9．He firmly asked_ _______a chance to try his luck, which at once encouraged（鼓励）_______.A．to give ;the others four B．to be given; the other fourC．be given; four the other D．giving; the four others10．—I'd like a pen which ________well.—Will this one________?A．writes; do B．writes; work C．is written; doD．is written; work11．To my disappointment, the computer I had________ was out of order again.A．repaired B．repaired it C．had repaired itD．had repaired12．He________ when the bus came to a sudden（突然）stop.A．was almost hurt B．was to hurt himselfC．was hurt himself D．was hurting himself13．The Bunsen Burner is so named because it is thought ________by Robert Bunsen.A．to be invented B．having been inventedC．invented D．to have been invented14．I don't care if a hunting dog smells ________,but we really don't want him to smell________.A．well; well B．bad; bad C．well; badlyD．bad; badly15．All the preparations（准备）for the project_______ _,and we're ready to start.A．completed（完成）B．had been completedC．complete D．have been completed16．—I________ to a party, but I've got nothing to wear.—Why don't you have a dress made for the party?A．was asked B．will ask C．have asked D．have been asked 17．Your room requires_ _______.________she clean it for you? A．cleaning; Will B．to clean; ShouldC．to be cleaned; Shall D．being cleaned; Will18．I feel it is your husband who_ _______for the spoiled child.A．is to blame B．is going to blameC．is to be blamed D．should blame19．—What's the matter?—The shoes don't fit properly. They___ _____my feet.A．are hurt B．will hurt C．have hurt Dare hurting20．Th．is kind of cloth ________well and_ _______long.A．is washed; lasts B．washes; lastsC．washes; is lasted D．is washed; lasted.情态动词表推测1. Michael __ be a Policeman, for he's much too short.A. needn’tB. can'tC. should D .may2. Johnny, you __ play with the knife. You __hurt yourself.A. won't, can’tB. mustn’t, mayC. shouldn’t, mustD. can’t, shouldn’t3. Peter __ come with us tonight, but taken he isn't very sure yet.A. cansB. mayC. willD. might4. Put on more clothes. You __ be taken feeling cold with only a shirt on.A. mustB. mayC. mightD. would5. it’s nearly seven o’clock. Jack __ be here at any moment.A. mustB. needC. shouldD. can6. I didn't hear the phone. I _ _ asleep.A. must beB. must have beenC. should beD. should have been7. Jack __ yet, otherwise he would have telephoned me.A. mustn’t have arrivedB. shouldn't have arrivedC.can't have arrivedD. need not have arrived8.--there were already five people in the car but they managed to take meas well. --It __ a comfortable journey.A. can’t beB. shouldn't beC. mustn't have beenD. couldn't have been9. He __you more help, even though he was very busy.A. might have givenB. might giveC. may have givenD. may give10. Yesterday Jane waooked away from the discussion. Otherwise , she __ Something the would regret later.A. had saidB. saidC. might sayD. might have said11. There was plenty of time. She __.A. mustn’t have hurriedB. needn't have hurriedC.should have written it outD. couldn't have hurried12. Tom ought not to __ me your secret, but be meant no harm.A. have toldB. tellC. be tellingD. haven't told13. I told Sally how to get there, but perhaps I __ for her.A. had to write it outB. must have written it outC. should have written itOut D. ought to write it out14. If you had worked harder, you __.A. would succeedB. had succeededC. should succeedD. would have succeeded15.--If he __, he __that food.--luckily he was sent to the hospital immediately.A. was warned; would not takeB. had been warrned; had not takenC. would be warned;had not takenD.would have been warned; had not taken16.--I stayed at a hotel while in New York.--Oh, did you? You _ _ with Barbara.A. could have stayedB. could stayC. would stayD. must have stayed17. Sorry I'm late. I __ have turned off the alarm and gone back to sleepagain.A. mightB. shouldC. canD. will18.--Shall I tell John about it?--No you __.I've told him already.A. needn’tB. wouldn'tC. mustn'tD. shouldn't19. The new airport __ if they had not stopped working on it.A. would completeB. had been completedC. had completedD. would have been completed。