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                 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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