aiedu.c英語20分鐘專題突破：情態(tài)動詞

1. After the bell rings, which indicates the ending of the exam, you      stay where you are until all your papers are collected．

A．shall         B．would              C．will                 D．can

2. ―Will you please stay here for the concert?

   ―Sorry, I _____ . I’ll have to go to an important meeting.

A. wouldn’t       B. needn’t      C. mustn’t          D. can’t

3.－I missed the first part of the play. It was a pity.

－You ________ home half an hour earlier.

A. should have left     B. must have left    C. would have left      D. need have left

4. Look! Tom is too sleepy to work .He __ up watching TV.

A. mustn't have stayed   B. shouldn't have stayed   C. mustn't stay   D. ought not to say.

5. ----I’ve told her many times , and she still forgot about it!

   ---I understand． It’s true that she _______ be very forgetful sometimes．

A． can          B． should             C． ought to           D． must

6. English lessons are in strong demand in the United States, and people ____ wait for an opening

   A. have to B. may have to           C. must                 D. may

7. Yesterday , Jane walked away from the discussion. Otherwise , she        

something she would rather regret later.

A. had said       B. said             C. might say          D. might have said

8. ―Are you coming to Jeff’s party?

―I’m not sure, I        go to the concert instead.

A. must          B. would          C. should              D. might

9. Most of the big hotels were full at this time of year, but finally we _________ finda room in one of those small guesthouses near the station.

A. ought to           B. could                C. were able to              D. might

10. Being examined twice a year，whether it is a car or a bus or a truck，is the rule that every driver _______obey in this city.

A. shall                 B. can                     C. ought to                   D. need

11. The weather in the south is generally warm, but it _____ be very cold sometimes.

A. may                B. shall                    C. will                      D. can

12. 一I heard they went skiing in the mountains 1ast winter．

    一It         be true because there was littIe snow there．

A. mustn't        B．couldn't         C．may not         D．won't

13. He was a good swimmer so he _________ swim to the river bank when the boat sank.

A. could           B. might              C. should             D. was able to

14. Since the ground is white, it _________ last night.

A. had snowed                B. must have snowed 

C. must be snowing           D. must have been snowing

15.  --- That must be a mistake.   ---- No .it _________ be.

 A. can't       B. isn't able to     C. can       D. was able to

16. He had known the matter before you told him, so you _________ have told it to him.

 A. mustn't       B. can't          C. needn't      D. shouldn't

17. You are their teacher. You _________ care of them.

A. should to take     B. might to take   C. ought to take     D. need to take

18. She is studying medical science now but she _________ a lawyer.

A. used to be        B. would be       C. were        D. had been

19. ________ you succeed !

A. Can               B. May            C. Must         D. Will

20.The teacher told the students that they ________ keep silent in class all the time.

A. ought to not     B. ought not to     C. ought not to have    D. can't

1. A 2. D 3. A  4. B  5. A  6. B  7. D  8. D  9. C  10. A  11. D  12. B

13. D  14. B  15. A  16. C  17. C  18. A   19. B  20. C

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