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People ______always be careful with fire， or it can be dangerous.
#76425
A
can
B
needn’t
C
must
D
shouldn’t
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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
Hurry up, or you ______ catch the train.
#62829
A
needn’t
B
mustn’t
C
can’t
D
shouldn’t
Today is Wednesday. He _______ be at home. He _____ be at school.
#77250
A
can’t; can
B
can’t; must
C
mustn’t; must
D
mustn’t; can
--May I pick a flower in the garden? --No, you _________.
#63275
A
needn’t
B
mustn’t
C
can’t
D
won’t
He went into his room,    the light and began to work.
#77717
A
has turned on
B
turned off
C
turned on
D
has turned off