一、基础练习
1.He ___ have completed his work; otherwise, he wouldn't be enjoying himself by the seaside.
A. should B. must C. wouldn't D. can't
2. I _____ have been more than six years old when the accident happened.
A. shouldn't B. couldn't C. mustn't D. needn't
3. This cake is very sweet. You ____ a lot of sugar in it.
A. should put B. could have put C. might put D. must have put
4. He paid for a seat, when he ____ have entered free.
A. could B. would C. must D. need
5. 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 doing B. must have been doing
C. could have done D. would have done
6. - Tom is never late for work. Why is he absent today?
-- Something __________ to him.
A. must happen B. should have happened
C. could have happened D. must have happened
7. - Do you know where David is? I couldn't find him anywhere.
-- Well. He _______ have gone far-his coat is still here.
A. shouldn't B. mustn't C. can't D. wouldn't
8. -Lucy doesn't mind lending you her dictionary.
-- She __________. I've already borrowed one.
A. can't B. mustn't C. needn't D. shouldn't
9. --- Catherine, I have cleaned the room for you.
--- Thanks. You _____ it. I could manage it myself.
A. needn't do B. needn't have done
C. mustn't do D. shouldn't have done
10. There________ be any difficulty in passing the road test since you have practised a lot in the driving school.
A. mustn't B. shan't C. shouldn't D. needn't
11. ---- 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 though B. might go through
C. ought to have gone through D. must have gone though
12. ----I've taken someone else's green sweater by mistake.
----It ______ Harry's. He always wears green.
A. has to be B. will be C. mustn't be D. could be
13. Helen _______ go on the trip with us, but she isn't quite sure yet.
A. shall B. must C. may D. can
14. If I ________ plan to do anything I wanted to, I'd like to go to Tibet and travel
through as much of it as possible.
A. would B. could C have to D. ought to
15. You might just as well tell the manufacturer that male customers_____ not like the design of the furniture.
A. must B. shall C. may D. need
16. ----Who is the girl standing over there?
---- Well, if you ______ know, her name is Mabel.
A. may B. can C. must D. shall
17. Children under 12 years of age in that country______ be under adult supervision
when in a public library.
A. must B. may C. can D. need
18. "The interest ______ be divided into five parts, according to the agreement made
by both sides," declared the judge.
A. may B. should C. must D. shall
19. ---- I'll tell Mary about her new job tomorrow.
----You _______ her last week.
A. ought to tell B. would have told
C. must tell D. should have told
20. I ______ pay Tom a visit, but I'm not sure whether I will have time this Sunday.
A. should B. might C. would D. could
21. ----I don't mind telling you what I know.
----You ________. I'm not asking you for it.
A. mustn't B. may not C. can't D. needn't
22. ----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't B. might not C. needn't D. shouldn't
23. ----Excuse me. Is that the right way to the Summer Palace?
----Sorry, I'm not sure, but it ______ be.
A. might B. will C. must D. can
24. ----Mum, I've been studying English since 8 o'clock. ________ I go out and play
with Tom for a while?
----No, I'm afraid not. Besides, it's raining outside now.
A. can't B. wouldn't C. may not D. won't
25. I often see lights in that empty house. Do you think I _____report it to the police?
A. should B. may C. will D. can
26. Mr. White_______ at 8:30 for the meeting, but he didn't show up.
A. should have arrived B. should arrive
C. should have had arrived D. should be arriving
27. You ________ be tired-you've only been working for an hour.
A. must not B. won't C. can't D. may not
二、提高练习
1.--- Shall I tell John about it?
--- No, you ______. I’ve told him already.
A. needn’t B. wouldn’t C. mustn’t D. shouldn’t
2. --- There were already five people in the car, but they managed to take me as well.
--- It ______ a comfortable journey.
A. can’t be B. shouldn’t be
C. mustn’t have been D. couldn’t have been
3. --- Why didn’t you come to see me?
--- I ______, but I was too busy yesterday.
A. like to B. should like to
C. would like to have D. am going to
4. You can’t imagine that a well-behaved gentleman ______ be so rude to a lady.
A. might B. need C. should D. would
5. There was plenty of time; she ______.
A. mustn’t have hurried B. needn’t have hurried
C. may not have hurried D. wouldn’t have hurried
6. --- Is John coming by air?
--- He should, but ______ not. He likes taking trains.
A. must B. can C. need D. may
7. --- ______ it be Li Ping who broke the glass?
--- No. It ______ be Wang Hai who did it.
A. Could; may B. Can; can C. May; must D. Can; must
8. When the old man was alive, he ______ sit for hours at the door.
A. would B. could C. must D. might
9. Jack, you ______ play with the knife; you ______ hurt yourself.
A. won’t; can’t B. mustn’t; may C. shouldn’t; must D. can’t; should
10. I’ve decided to take the job and I ______ change my mind.
A. mustn’t B. can’t C. won’t D. may not
11. She ______ into the thick forest alone on such a dark night.
A. dares not go B. dares not to go
C. dare not to go D. doesn’t dare to go
12. My parents never remember my telephone number, and they always ______ look it up.
A. must B. can C. should D. have to
13. --- Where is Jack? I can’t find him anywhere.
--- He ______ his homework upstairs.
A. might have done B. must have done C. might be doing D. must do
14. He ______ you more help, even though he was very busy.
A. might have given B. might give C. may have given D. may give
15. --- If he ______, he ______ that food.
--- Luckily he was sent to the hospital immediately.
A. was warned; would not take B. had been warned; would not have taken
C. would be warned; had not taken D. would have been warned; had not taken
16. --- I hear you've got a set of valuable Australian coins. ____I have a look ?
--- Yes, certainly.
A. Do B. May C. Shall D. Should
17. — When can I come for the photos? I need them tomorrow afternoon.
— They be ready by 12:00.
A. can B. should C. might D. need
18. I___ such a mistake again.
A. will never make B. shall never make
C. can never do D. need never do
19. He began to write two hours ago. He ______ have finished the article now.
A. must B. ought C. would D. had to
20. 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 to
21. — You know that you were driving 100 km an hour, don't you?
— No officer, I ____. This car doesn't do more than 80.
A. may not have been B. couldn't have been
C. mustn't have been D. shouldn't have been
22. I think he could have joined us, but he ____
A. doesn't B. did C. didn't D. couldn't
23. — Why ____ it rain now? I ____ go to the concert at 7.
— What a pity!
A. can, might not B. should, needn't C. must, can't D. need, mustn't
24. He was caught in the rain last night. That _____ his cold.
A. can bring about B. ought to bring about
C. should have brought about D. may have brought about
25. — Did you visit the famous museum?
— No, we ___, but we spent too much time shopping.
A. could have visited B. must have visited
C. can' t have visited D. shouldn't have visited
26. — You must phone us every week.
— Yes, I _____.
A. must B. have to C. will D. should
27. Don't throw the bottles away. They ____ in the future.
A. may need B. are needed C. can be needing D. might be needed
28. English is a language that many people around the world ____ not speak perfectly but ___ at least understand.
A. may, can B. would, might C. will, must D. could, might
29. — I wonder why Mr. Wang didn't attend the lecture.
— He ____ another one.
A. could have B. must have C. might have had D. should have had
30. He was taken away by the police. He ___ for a robber.
A. must be mistaken B. was being mistaken C. must mistake D. must have been mistaken
31. — I wonder if I ____ smoke here.
— No, you _______. Could you see the sign "No Smoking" there?
A. can, needn't B. shall, won’t C. must, can't D. may, mustn't
32. — I haven't seen Mr. White for weeks.
— What _____ to him?
A. must have happened B. may have happened
C. can have happened D. may happen
33. — I didn't go to work yesterday afternoon because my car broke down.
— You ________ mine. I wasn't using it.
A. might borrow B. could have borrowed
C. can have borrowed D. ought to borrow
34. — A man answered the phone. I suppose it was her husband.
— It ___ her husband. He has been dead for ages.
A. mustn't be B. couldn't have been C. may not have been D. mustn't have been
35. Considering that Tom always did well in all his subjects, he ____ in the final exam.
A. mustn't fail B. couldn't have failed C. ought not to fail D. mustn't have failed
36. She ___ the hospital so soon, for she has not yet recovered.
A. wouldn't have left B. shouldn't have left
C. mustn't have left D. didn't have to leave
37. — I promise her daughter ____ get a nice present on her birthday.
— Will it be a big surprise to her?
A. should B. must C. would D. shall
38. — What's wrong with your pen'?
— The ink ____ come out.
A. can't B. doesn't C. hasn't D. won' t
39. "Whatever you want, you _____ have it on condition that you get the best result." said the boss.
A. would B. ought to C. shall D. could
40. Tom, you are so lazy! This work ___ hours ago.
A. should finish B. must have finished
C. should have been finished D. might have finished
参考答案：
一、
1-5 BBDAB 6-10 DCCBC 11-15 DDCBC
16-20 CADDA 21-25 DAAAA 26-27 AC
二、
1 – 20： ADCCB DDABC DDCAB BBAAB
21 – 40: BCCDA CDACD DCBBB BDDCC
