---Someone is knocking at the door. Who may it be? ---It ______ be Tom. He is still in the school.
#74601
A
can’t
B
mustn’t
C
couldn’t
D
may not
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--Would you like to visit Kun Ming by yourself this summer vocation? --I’m not sure. I _____go there with my parents because of the terrible thing at the railway station.
#74482
A
may
B
must
C
can
D
should
(2013·高考新课标全国卷Ⅱ)Since nobody gave him any help，he________have done the research on his own.
#62474
A
can
B
must
C
would
D
need
Johnny, you play with the knife; you hurt yourself.
#63075
A
won’t; can’t
B
mustn’t; may
C
needn’t; must
D
can’t; should
It is usually warm in my hometown in March, but it ____be rather cold sometimes.
#76575
A
must
B
can
C
should
D
would