A. must be
B. must have been
C. should be
D. should have been
答:B。从句子的时态didn’t hear可判断出B项。
9. He _______ you more help, even though he was very busy.
A. might have given
B. might give
C. may have given
D. may give
答:A。此题相当于 If you had asked him for help, he might have given you more helpo
10. —Could 1 borrow your dictionary? ______ Yes, of course you__________.
A. might
B. will
C. can
D. should
答:C。could,might,would用来提问时,表示语气婉转的,客气。因此,用can,may或will来回答。如:
① —Might 1 sit here?
—Yes, you may.
② —Would you remember me to your parents?
—Thank you. I will.
11. If you go from Changehun to Beijing, you ________ a passport.
A. needn’t
B. don’t need
C. needn’t to have
D. oughtn’t need
答:B。情态动词有三个特点;①不能单独做谓语
②设有人称和数的变化 ③(除ought外)接省去to的动词不定式。
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