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--- It’s so late. Our son______ be back!--- Don’t worry. I dare say he ______ have some extra work to do.
#62953
A
can; must
B
will; might
C
should; must
D
must; may
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—I didn’t tell him the news.—Oh, you ought _______.
#63528
A
to 　　
B
not to
C
not to have 　
D
to have
-----You ______ it up during the meeting------I_______ know it was so sensitive an issue. 
#62907
A
might not have brought ;don’t
B
needn’t have brought;don’t
C
shouldn’t have taken,didn’t
D
shouldn’t have brought ,didn’t
In order to improve your spoken English, you ________ be afraid of losing face.
#75581
A
can’t
B
don’t
C
mustn’t
D
shouldn’t
—May I play computer games, Mum?—No, you ______. You’ve got a lot of homework to do.
#78144
A
needn’t
B
mustn’t
C
wouldn’t
D
won’t
(2013·长沙二模)—The research on the new flu virus vaccine is challenging  and demanding.Who do you think can do the job?—________ my students have a try?
#62416
A
May
B
Must
C
Will
D
Shall