情态动词基础练习题

中考情态动词基础单选40题1.You finish your homework before you watch TV.A.mustB.canC.mayD.could答案：A。

“must”表示必须，在这里强调在看电视之前必须完成作业，是一种强烈的要求。

“can”表示能够，“may”表示可能，“could”表示过去的能够或委婉的请求，这三个选项都没有“必须”的意思强烈。

2.We go to the park if it doesn't rain tomorrow.A.mustB.canC.willD.should答案：B。

“can”在这里表示可能性，即如果明天不下雨我们就能够去公园。

“must”表示必须，“will”表示将来会，“should”表示应该，都不符合此语境。

3.She speak three languages.A.canB.mayC.mustD.should答案：A。

“can”表示能力，她能够说三种语言。

“may”表示可能，“must”表示必须，“should”表示应该，都不能表达她具有说三种语言的能力。

4.You borrow books from the library.A.canB.mustC.shouldD.need答案：A。

“can”表示可以，即你可以从图书馆借书。

“must”表示必须，“should”表示应该，“need”表示需要，都不符合此语境。

5.I be late for school today. I got up late.A.mayB.mustC.canD.should答案：A。

“may”表示可能，因为起晚了所以可能会迟到。

“must”表示必须，“can”表示能够，“should”表示应该，都不太符合此语境。

6.We take an umbrella. It might rain later.A.mustB.canC.shouldD.may答案：C。

“should”在这里表示应该，因为可能会下雨所以应该带伞。

高中英语语法练习-情态动词一、基础练习1.He ___ have completed his work; otherwise, he wouldn't be enjoying himself by the seaside.A. shouldB. mustC. wouldn'tD. can't2. I _____ have been more than six years old when the accident happened.A. shouldn'tB. couldn'tC. mustn'tD. needn't3. This cake is very sweet. You ____ a lot of sugar in it.A. should putB. could have putC. might putD. must have put4. He paid for a seat, when he ____ have entered free.A. couldB. wouldC. mustD. need5. I was on the highway when his car went past followed by a police car. They ____ at least 150 kilometers an hour.A. should have been doingB. must have been doingC. could have doneD. would have done6. — Tom is never late for work. Why is he absent today?— Something __________ to him.A. must happenB. should have happenedC. could have happenedD. must have happened7. - Do you know where David is? I couldn't find him anywhere.- Well. He _______ have gone far-his coat is still here.A. shouldn'tB. mustn'tC. can'tD. wouldn't8. -Lucy doesn't mind lending you her dictionary.- She __________. I've already borrowed one.A. can'tB. mustn'tC. needn'tD. shouldn't9. - Catherine, I have cleaned the room for you.- Thanks. You _____ it. I could manage it myself.A. needn't doB. needn't have doneC. mustn't doD. shouldn't have done10. There________ be any difficulty in passing the road test since you have practised a lot in the driving school.A. mustn'tB. shan'tC. shouldn'tD. needn't11. - The woman biologist stayed in Africa studying wild animals for 13 years before she returned.-Oh, dear! She ________ a lot of difficulties!A. may go thoughB. might go throughC. ought to have gone throughD. must have gone though12. -I've taken someone else's green sweater by mistake.-It ______ Harry's. He always wears green.A. has to beB. will beC. mustn't beD. could be13. Helen _______ go on the trip with us, but she isn't quite sure yet.A. shallB. mustC. mayD. can14. If I ________ plan to do anything I wanted to, I'd like to go to Tibet and travelthrough as much of it as possible.A. wouldB. could C have to D. ought to15. You might just as well tell the manufacturer that male customers_____ not like the design of the furniture.A. mustB. shallC. mayD. need16. -Who is the girl standing over there?- Well, if you ______ know, her name is Mabel.A. mayB. canC. mustD. shall17. Children under 12 years of age in that country______ be under adult supervisionwhen in a public library.A. mustB. mayC. canD. need18. "The interest ______ be divided into five parts, according to the agreement madeby both sides," declared the judge.A. mayB. shouldC. mustD. shall19. -- I'll tell Mary about her new job tomorrow.--You _______ her last week.A. ought to tellB. would have toldC. must tellD. should have told20. I ______ pay Tom a visit, but I'm not sure whether I will have time this Sunday.A. shouldB. mightC. wouldD. could21. --I don't mind telling you what I know.--You ________. I'm not asking you for it.A. mustn'tB. may notC. can'tD. needn't22. --Excuse me, but I want to use your computer to type a report.--You________ have my computer if you don't take care of it.A. shan'tB. might notC. needn'tD. shouldn't23. --Excuse me. Is that the right way to the Summer Palace?--Sorry, I'm not sure, but it ______ be.A. mightB. willC. mustD. can24. --Mum, I've been studying English since 8 o'clock. ________ I go out and playwith Tom for a while?--No, I'm afraid not. Besides, it's raining outside now.A. can'tB. wouldn'tC. may notD. won't25. I often see lights in that empty house. Do you think I _____report it to the police?A. shouldB. mayC. willD. can26. Mr. White_______ at 8:30 for the meeting, but he didn't show up.A. should have arrivedB. should arriveC. should have had arrivedD. should be arriving27. You ________ be tired-you've only been working for an hour.A. must notB. won'tC. can'tD. may not二、提高练习1．--- Shall I tell John about it?--- No, you ______. I’ve told him already.A. needn’ｔB. wouldn’ｔC. mustn’ｔD. shouldn’ｔ2. --- There were already five people in the car, but they managed to take me as well.--- It ______ a comfortable journey.A. can’t beB. shouldn’t beC. mustn’t have beenD. couldn’t have been3. --- Why didn’t you come to see me?--- I ______, but I was too busy yesterday.A. like toB. should like toC. would like to haveD. am going to-behaved gentleman ______ be so rude to a lady.4. You can’t imagine that a wellA. mightB. needC. shouldD. would5. There was plenty of time; she ______.A. mustn’t have hurriedB. needn’t have hurriedC. may not have hurriedD. wouldn’t have hurried6. --- Is John coming by air?--- He should, but ______ not. He likes taking trains.A. mustB. canC. needD. may7. --- ______ it be Li Ping who broke the glass?--- No. It ______ be Wang Hai who did it.A. Could; mayB. Can; canC. May; mustD. Can; must8. When the old man was alive, he ______ sit for hours at the door.A. wouldB. couldC. mustD. might9. Jack, you ______ play with the knife; you ______ hurt yourself.A. won’t; can’ｔB. mustn’t; mayC. shouldn’t; mustD. can’t; should10. I’ve decided to take the job and I ______ change my mind.A. mustn’ｔB. can’ｔC. won’ｔD. may not11. She ______ into the thick forest alone on such a dark night.A. dares not goB. dares not to goC. dare not to goD. doesn’t dare to go12. My parents never remember my telephone number, and they always ______ look it up.A. mustB. canC. shouldD. have to13. --- Where is Jack? I can’t find him anywhere.--- He ______ his homework upstairs.A. might have doneB. must have doneC. might be doingD. must do14. He ______ you more help, even though he was very busy.A. might have givenB. might giveC. may have givenD. may give15. --- If he ______, he ______ that food.--- Luckily he was sent to the hospital immediately.A. was warned; would not takeB. had been warned; would not have takenC. would be warned; had not takenD. would have been warned; had not taken16. --- I hear you've got a set of valuable Australian coins. ____I have a look ?--- Yes, certainly.A. DoB. MayC. ShallD. Should17. — When can I come for the photos? I need them tomorrow afternoon.。

三年级英语情态动词基础单选题40题1.I_____read many books.A.canB.couldC.mayD.must答案：A。

本题考查情态动词的用法。

“can”表示能力，“could”表示过去的能力，三年级学生一般是现在的能力，所以选“can”。

“may”表示可能，“must”表示必须，不符合题意。

2.We_____play games in the classroom.A.canB.couldC.can'tD.couldn't答案：C。

在教室里不能玩游戏，“can't”表示不能。

“can”和“could”表示能，不符合语境。

“couldn't”是过去不能，也不符合。

3.She_____sing very well.A.canB.couldC.mayD.might答案：A。

表示她有唱歌的能力用“can”。

“could”表示过去的能力，“may”和“might”表示可能，不符合题意。

4.They_____draw pictures in art class.A.canB.couldC.mustD.should答案：A。

在美术课上能画画用“can”表示能力。

“could”过去的能力，“must”必须，“should”应该，都不符合。

5.I_____help you with your homework.A.canB.couldC.mayD.might答案：A。

表示我有帮助你做作业的能力用“can”。

“could”过去的能力，“may”和“might”表示可能，不符合。

6.We_____listen to the teacher carefully.A.canB.couldC.mustD.should答案：C。

在学校里必须认真听老师讲课，用“must”。

“can”和“could”表示能力，“should”应该，都不符合。

7.She_____speak English and Chinese.A.canB.couldC.mayD.might答案：A。

情态动词can的用法专项练习I.基础练习一、把下列句子变为否定句can ride a horse well.2. He can take pictures.and Chenjie can play the piano.father can play basketball.5. My brother could go cycling five years ago.二、把下列句子变为一般疑问句并作肯定和否定回答。

can play basketball well.mother can play the piano.and Chenjie can take pictures.can clean the room.5. She could use the InternetII.能力提升根据要求完成下列各题can play football.(改为否定句)2. Zhangpeng can ride a horse.(一般疑问句)3. I can ride a bike .(用two years ago 改写)4. My sister can do housework.(划线部分提问)5. I can play the violin . (划线部分提问)6. My father could use the Internet.①改为否定句②改为一般疑问句并作否定回答巩固练习1. 迈克会说英语，但她不会说汉语。

Mike ____ ____ English ,__ _she _____speak Chinese.2. 你的朋友会骑马吗------会。

______ your friends ____ ____ ____ Yes , _____ can.3. 那个女孩不会打羽毛球。

The girl ______ ______ badminton..4. Amy 会游泳吗------不会。

______ Amy ______ No , she ______.5. 他们会弹钢琴。

初中英语情态动词专项练习（附答案解析）一、单选题1．—Must I hand in the homework right now?—That's the rule.A．Yes, you can.B．No, you can't.C．Yes, you must.D．No, you mustn't.1．答案C解析句意：—我必须现在交作业吗？—这是规则。

是的,，你必须。

A. Yes,you can.“是的,你能”；B. No,you can't.“不,你不能”；C. Yes,you must.“是的,你必须”；D. No,you mustn't.“不,你禁止”。

回答must引导的一般疑问句，肯定用must，表示"必须"。

故选C。

点评考查情态动词引导的一般疑问句的回答，掌握情态动词must的用法。

2．You don't look well, you __________ see the doctor.A．ought to B．may C．can D．Might 2．答案A解析句意：你看起来不好，你应该去看看医生。

根据“看起来不好”可以得知是应该去。

A. ought to “应该”；B. may “可能”；C. can“ 会”；D. might“可能”。

故选A。

点评考查情态动词，区分ought to；may ；can和might的含义和应用。

3．What a beautiful day! You ______ take your umbrella at all.A．needn't B．mustn't C．can't D．may not 3．答案A解析句意：多好的天气啊!你根本不需要带伞。

A. needn't “不必”；B. mustn't“禁止”；C. can't“不可能”；D. may not“或许不会”。

情态动词基础练习题一、单项选择情态动词1．—You rang me up at about 10:00 last night, didn't you?—No, I didn't phone you. It someone else.A．must have been B．could be C．must be D．could have been 【答案】A【解析】【详解】考查情态动词+have done。

句意：“昨晚10点左右你给我打了电话，是吗？”“不，我没给你打电话。

一定是别人干的。

” must have done 是对过去发生的动作最有把握的猜测，意思是“一定”，结合语境可知，我没有打电话给你，因此猜测一定有别人给你打了电话。

故选A 项。

2．Keep up your spirits even if you _____ fail hundreds of times.A．must B．needC．may D．should【答案】C【解析】【详解】考查情态动词。

A. must必须；B. need需要；C. may可能，或许；D. should应该。

句意：即使失败了几百次，也要振作起来。

此处表示一种不确定的推测，故选C。

3．Using AI， many companies are now conducting experiments that__________ possible just a few years ago．A．would have been B．might have beenC．shouldn't have been D．couldn't have been【答案】D【解析】【详解】考查情态动词表推测。

句意：很多公司现在使用人工智能进行试验，这在几年前是不可能的。

根据“a few years ago”可知，此处表示“过去不可能”，应该用couldn’t have done，故D 项正确。

一．用can 填空四情态动词Can 专项练习（基础题）1. He run .2. He jump.3. He sing.4. He write.5. He read.11.I run .13.His sister jump.15.Supergirl sing.17.He write.19.It read.6.She dive.7.She fly.8.She paint.9.She dance.10.She cook.12.My mother dive. 14.Sam fly.16.Kitty paint.18.Our teacher dance.20.Tom cook.二．选择题1.Can you a model ship for him? A.makes B.make C.making2.—Can you and answer my questions?--Yes,sir. A.stand up. B.stand down. C sit down.3.Can you English? A.say B. speak C .tell4.—How can you ?---I can go by bus. A.go there B.go to there C. get bus6. Can you me the way to Jack’s house? A.know B.show C.say7. Nancy can cakes for her sister. A.makes B. making C.make8. You can bus No.6 at the next stop.A. takeB.goC.by（拔高题）将下列句子变为一般疑问句，并作肯定与否定回答。

1.He can run.2.She can jump.3.They can swim.4.You can dance.5.He can write.6.She can sing.7.It can play. 8.They can talk.9.She can read. 10.He can fly.11.You can dive. 12.It can draw.13.They can skate. 14.He can paint.15.We can dance. 16.We can swim.17.My mother can write. 18.My father can sing. 19.Our sister can play. 20.Our friends can talk. 21.She can fly. 22.Kitty can read.23.My daddy can dive. 24.Her mommy can draw.。

中考英语情态动词推测基础单选题40题1. Mary is not in the classroom. She ______ be in the library.A. mayB. mustC. can'tD. needn't答案：A。

本题中，Mary 不在教室，她有可能在图书馆，“may”表示可能性较小的推测，“must”表示肯定的推测，“can't”表示否定的推测，意思是“不可能”，“needn't”表示“不必”，根据语境，A 选项最合适。

2. The coat on the chair looks like yours. It ______ be yours.A. mightB. mustC. can'tD. should答案：A。

椅子上的外套看起来像你的，有较小的可能是你的。

“might”表示可能性较小，“must”是肯定推测，“can't”是否定推测，“should”表示“应该”，这里A 选项更符合。

3. There is someone knocking at the door. It ______ be Tom.A. mayB. mustC. can't答案：A。

有人敲门，有可能是Tom。

“may”表示可能性不大的猜测，“must”是很肯定的猜测，“can't”是不可能，“could”也可以表示可能性，但语气比“may”稍弱，综合语境选A。

4. Jack isn't at home. He ______ be playing football outside.A. mayB. mustC. can'tD. ought to答案：A。

Jack 不在家，他可能在外面踢足球。

“may”表示不太确定的推测，“must”是非常确定，“can't”是不可能，“ought to”是应该，这里 A 选项更恰当。

5. The girl has a smile on her face. She ______ be very happy.A. mayB. mustC. can'tD. would答案：A。

中考情态动词基础单选20题(答案解析)1. You _____ finish your homework before you watch TV.A.mustB.shouldC.canD.may答案：A。

must 表示“必须”，在这里强调看电视之前必须先完成作业。

should 表示“应该”，语气没有must 强烈。

can 表示“能够”，may 表示“可能”，这两个选项不符合语境。

2. —May I use your pen?—Sure. Here you are. But you _____ return it after class.A.mustB.canC.mayD.should答案：A。

must 在这里表示“必须”，借了东西后必须在课后归还。

can 表示“能够”，may 表示“可能”，should 表示“应该”，这三个选项不如must 更能体现必须归还的意思。

3. You _____ be careful when you cross the road.A.mustB.shouldC.canD.may答案：A。

must 表示“必须”，过马路时必须小心。

should 表示“应该”，语气不如must 强烈。

can 表示“能够”，may 表示“可能”，不符合语境。

4. —Could I borrow your dictionary?—Yes, you _____. But you must return it on time.A.canB.shouldC.mustD.may答案：A。

could 表示委婉的请求，回答用can。

should 表示“应该”，must 表示“必须”，may 表示“可能”，不符合语境。

5. We _____ respect our teachers and parents.A.mustB.shouldC.canD.may答案：A。

must 表示“必须”，我们必须尊重老师和父母。

号顿市安谧阳光实验学校情态动词练习部分一、基础训练1）单项选择1. You ___ hand it in at once, you may hand it in tomorrow.(A) needn't (B) may not (C) can't (D) must not2. "That must be a mistake." "No it ___ a mistake."(A) must not be (B) needn't be (C) cannot be (D) would not be3. You ___ go now. It's getting late.(A) had rather (B) would (C) had better (D) would4. Since the bus is crowded, we ___.(A) had better walk to home (B) have better walk home(C) had better walk home (D) had better to walk home5. "You ___ come in now, Mary! It's getting cold!" “I ___ go on playing in the garden."(A) had better...had better (B) would rather...had better(C) had better...would rather (D) had better...would have better6. When I was a boy, I ___ chocolate.(A) would like (B) was used to like (C) should like (D) used to like 7. I wasn't supposed to go to the movies, but I ___ myself.(A) cannot help (B) couldn't but (C) had to help (D) couldn't help8. Looking at my determined face, the big boy ___ pick up the fight.(A) dares not (B) dare not (C) doesn't dare (D) dares not to9. He began to write two hours ago. He ___ have finished the article now.(A) must (B) ought (C) ought to (D) had to10. You ___ to the meeting this afternoon if you have something important to do.(A) needn't to come (B) don't need come (C) don't need coming(D)needn't come11. ___ you be here at eight o'clock tomorrow morning?(A) Would (B) Should (C) Can (D) Could12. ___ I have a talk with the Party Secretary now?(A) Will (B) Did (C) May (D) Can13. "You ___ read that article if you don’t want to.”(A) needn't (B) mustn’t (C) haven't (D) can’t14. When the storm comes all windows ___.(A) ought to close (B) ought to be closing (C) ought to be closed (D) ought to closed15. I ___ me what happened.(A) would like you tell (B) would like you to tell(C) would like you telling (D) would like you that you tell16. I hope you can visit my country soon, because___ toshow you someof the beautiful places near my home.(A) I like (B) I'd like (C) I will like(D) I shall like17. She ___ for yesterday's test, but she didn’t.(A)should have studied (B) would study (C) might be studying (D)must have studied18. He ___ breakfast at eight o'clock when he lived alone. But nowadays he ___ it at seven.(A) was used to have ... is having (B) was used to having ...is having(C) used to have ... has (D) used to having ...was19. In the old society Grandpa Zhou ___ to work long hours a day.(A) was working (B) was having (C) had (D) has20. Everybody ___ in bed.(A) has to spend some time (B) have to spend some time(C) has to spend sometimes (D) have to spend sometimes2) 选择合适的词或词组填空1. I have a headache. I __________ take an aspirin.(had better; would better)2. He looks sleepy. He must __________ bed very late last night. (go; have gone)3. I want to go to the office, but you __________ with me.(need not to go; need not go)4. I ought __________ those books to the library last week.(to have taken; to take)5. The mother is telling her son, “You __________ eat with your fingers!”(wouldn’t; mustn’t)6. He was a good swimmer so he _______ swim to the river bank when theboat sank. (was able to; could)7. To travel from England to Scotland you __________ a passport.(don’t need; needn’t)8. He went on foot, but he __________ by bus.(ought have gone; should have gone)9. A: Did Ken take the job in the bookstore?B: No, but I think he __________.(must have; should have)10. He __________ talk for hours, if you let him.(can; will)11. You __________ use this toothbrush, it’s mine.(may not; shall not)12. No matter what people say, I __________ do as I like.(shall; will)13. “I’m willing to let you take whatever you like.”Means “you ______take whatever you like.” (shall; will)14. A: I haven’t felt well for a week.B: You __________ see a doctor.(had better; should have to)15. A: He is late, __________ he have missed the bus?B: Yes, he must have missed the bus.(Can; Must)二、强化练习1) 选择填空1. I didn’t see her in the meeting room this morning. She _____ at the meeting.A. mustn’t have spokenB. shouldn’t have spokenC. needn’t have spokenD. couldn’t have spoken2. One ought _____ for what one hasn’t done.A. not to be punishedB. to not be punishedC. to not punishedD. not be punished 3. If you really want yourself to be in good health, you must ___ always ___ so much.A. not; be smokingB. not; have smokedC. not; to smokeD. be not; smoking4. With so much work on hand, you _____ to see the game last night.A. mustn’t goB. shouldn’t goC. couldn’t have goneD. shouldn’t have gone5. Most of the students felt rather disappointed at the English party. They say that it ______ better organized.A. had beenB. had to beC. must have beenD. could have been6. I’m surprised that he _____ in the exam.A. should failB. would have failedC. may have failedD. should have failed7. The little girl _____ there alone.A. not dare goB. dares not goC. dare not goD. dare not to go8. “Must we do it now?” “No, you _____.”A. won’tB. needn’tC. can’tD. don’t9. He said he would rather not _____ it right now.A. doingB. to doC. doD. to be doing10. You _____ to the meeting this afternoon if you have somethingimportant to do.A. needn’t to comeB. don’t need comeC. don’t need comingD. needn’t come11. Put on more clothes. You _____ be feeling cold with only a shirt on.A. canB. couldC. wouldD. must12. I _____ play football than baseball.A. would ratherB. had betterC. like betterD. prefer13. I thought you _____ like something to read, so I have brought you some books.A. mayB. mightC. couldD. must14. There was plenty of times. She _____.A. mustn’t have hurriedB. couldn’t have hurriedC. must not hurryD. needn’t have hurried15. The plant is dead. I _____ it more water.A. will giveB. would have givenC. must giveD. should have given16. You _____ return the book now. You can keep it till next week if you like.A. can’tB. mustn’tC. needn’tD. may not 17. It’s still early, you _____.A. mustn’t hurryB. wouldn’t hurryC. may not hurryD. don’t have to hurry18. Please open the window, _____?A. can’t youB. aren’t youC. do youD. will you19. We _____ for her because she never came.A. mustn’t have waitedB. shouldn’t have waitedC. mustn’t waitD. needn’t wait20. — May I stop here? — No, you _____.A. mustn’tB. might notC. needn’tD. won’t21. It’s a fine day. Let’s go fishing, _____.A. won’t weB. will weC. don’t weD. shall we22. I didn’t see her in the meeting room this morning. She _____ at the meeting.A. mustn’t have spokenB. shouldn’t have spokenC. needn’t have spokenD. couldn’t have spoken23. — Please don’t make a noise.— _____. I’ll be as quiet as a mouse.A. Yes, I won’tB. No, I won’tC. No, I willD. Yes,I will24. The young man has made so much noise that he _____ not have been allowed to attend the concert.A. couldB. mustC. wouldD. should25. — Where is John? — He _____ in the library.A. should beB. must beC. can beD. must have been26. Since the road is wet this morning, _____ last night.A. it must rainB. it must be rainingC. it must have rainedD. it must have been rain27. — Will your brother stay home tonight?—I’m not quite sure. He _____ to the cinema tonight.A. must goB. can goC. may goD. may be going28. She’s already two hours late. What ______ to her?A. can have happenedB. may have happenedC. should have happenedD. must happen29. You must be a writer, _____? A. mustn’t you B. are you C. must you D. aren’t you30. I got up early that morning, but I _____ so because I had no work to do.A. mustn’t have doneB. didn’t need to doC. needn’t have doneD. can’t have done31. He _____ have come here yesterday, but he didn’t.A. couldB. shouldC. ought toD. all the above32. I missed the last bus, so I _____ go home on foot.A. mustB. have toC. mayD. had to33. He ought to win the first prize, _____ he?A. oughtn’tB. shouldn’tC. mustn’tD. both A and B34. Everyone _____ do his best for the modernizations of our country.A. canB. mayC. shouldD. might35. Let’s clean our classroom, _____?A. will youB. don’t weC. shall weD. do you36. Let us play basketball, ______?A. will youB. don’t weC. shall weD. do you37. He asked me for this book many times. Please tell him that he _____ have it tomorrow.A. mustB. mayC. shallD. both B and C38. “Your phone number again? I _____ quite catch it.”“I t’s 9568442.”A. didn’tB. couldn’tC. don’tD. can’t39. Mother _____ us stories when we were children.A. was used to tellB. is used to tellingC. used to tellD. used to telling40. She would rather _____ more money on books _____ on clothes.A. cost … notB. to spare … don’tC. pay … thanD. spend …than2）强化练习题1) You____ all those clothes! We have a washing machine to do that sort of thing.A) needn't have washed B) shouldn't have washedC) must not have washed D) can not have washed2) John's score on the test is the highest in the class; he____ last night.A) should study B) should have studiedC) must have studied D) must have to study3) The room is in a terrible mess; it ____cleaned.A) can't have been B) shouldn't have beenC) mustn't have been D) wouldn't have been4) Nobody knows how people first came to these islands. They ____ from South America on rafts.A) must have sailed B) can sail C) might have sailed D) should have sailed 5) Mary was not in her bedroom yesterday afternoon. She ____ in her classroom.A) should have been B) must have been C) must be D) should be 6) Bob said he was going to join our club but he didn't. He ____ his mind.A) can't have changed B) wouldn't have changedC) must have changed D) shouldn't have changed7) You____ to town to see the film yesterday. It will be on TV tonight.A) needn't go B) had better not go C) should not go D) needn't have gone8) We____ the letter yesterday, but it didn't arrive.A) must receive B) ought to receiveC) must have received D) ought to have received9) With all the work on hand, he____ to the cinema last night.A) mustn't go B) shouldn't have gone C) could not go D) couldn't have gone10) Eve was late for class again. She ____earlier.A) should get up B) must get up C) need to get up D) should havegot up11) I am feeling sick. I____ so much chocolate.A) needn't have eaten B) couldn't have eatenC) mustn't have eaten D) shouldn't have eaten12) I didn't send out my application form last week, but I ____.A) had B) would do C) should have D) might have to13) Walking alone in the deserted village, John was scared. He thoughthe____ Tom to go with him.A) might have asked B) should asked C) must have asked D) should have asked14) When I got to the cinema, the film had already started; I____ there earlier.A) ought to get B) ought to have got C) must have got D) must get15) The road was muddy. It____ last night.A) must rained B) must have rained C) must be rained D) could have rained16) She can speak quite fluent English. She____.A) must been in the U.S.A. for some timeB) must have been in the U.S.A. for some timeC) should have been in the U.S.A. for some timeD) May be in the U.S.A. for some time 17) You should bear in mind that he is not so strong as he____.A) was used to be B) used to be C) was used to D) use to18)“We didn't see him at the exhibition yesterday.”“He ___it.”A) mustn't visit B) can't have visited C) should have gone to seeD) may see19) Mary ____my letter, otherwise she would have replied before now.A) should have received B) has receivedC) couldn't have received D) ought to have received20) I ____ you a valuable present for your birthday, but I was short of money.A) would have liked to give B) liked to giveC) have liked to give D) would like to give21)“Where ____ my umbrella?”“Somebody ____ it away by mistake.”A) is, must have taken B) is, must takeC) have been, must take D) is, takes22) What ____ would happen if the director knew you felt that way?A) will you suppose B) you supposeC) do you suppose D) you would suppose23) Two eyes ____see more than one.A) can B) may C) will D) should24) ____ you continue in your efforts and achieve new and greater successes.A) Would B) Will C) May D) Should25) We ought to help each other in our work, ____?A) oughtn't we B) should we C) shouldn't we D) ought to we26) Tom ____ better than to ask Dick for help.A) shall know B) shouldn't know C) has known D) should have known27) You ____ your tooth pulled out before it rot completely.A) had better got B) had to get better C) had better to get D) had better get28) When we got to the cinema, the film hasn't started yet, so we ____.A) needn't hurry B) didn't need hurryC) needn't to hurry D) needn't have hurried29) It was really very dangerous; you ____ him seriously.A) might have injured B) could injureC) should have injured D) must injure30) As he had heart attack, he was told that he ____ continue the work.A) needn't B) may not C) mustn't D) can't31) An Englishman who ____not speak Italian was once traveling in Italy.A) must B) could C) may D) might32) I ____like to make a suggestion.A) could B) would C) must D) might 33) I know things are hard with you, but you ____try to get over the difficulties.A) can B) may C) must D) ought34 I can't find the recorder in the room. It ____ by somebody.A) may have been taken away B) may leaveC) may take away D) must have taken away35) He ____the 9:20 train because he didn't leave home till 9:25.A) can reach B) could catch C) may not catch D) couldn't have caught3) 单句改错（先判断句子是否正确，正确的句子不需改动。