—Excuse me. May I sit here? —I’m afraid you _________. My daughter will come back soon.
#75583
A
can’t
B
mustn’t
C
needn’t
D
shouldn’t
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Lifting off at sunrise, the hot air balloon goes wherever the wind blow.
#63659
A
may
B
must
C
need
D
should
—May I smoke here，please?—I am afraid you ．This is a non-smoking area．
#77581
A
can
B
can’t
C
may
D
may not
(2013·重庆高考)—What are you doing this Saturday?—I'm not sure, but I ________ go to the Rolling Stones concert.
#62394
A
must
B
would
C
should
D
might