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The police still haven’t found the lost child, but they’re doing all they             .
#63627
A
can
B
may
C
must
D
should
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—Could I keep this book for another week?—Of course you        .
#75602
A
can
B
must
C
should
D
will
—He ____be in the classroom, I think.—No, he_____ be in the classroom. I saw him go home a minute ago.
#74430
A
can, may not
B
must, may not
C
may, can’t
D
may, mustn’t
Thomas _____ a soldier, for he is much too short.
#63130
A
needn’t be
B
should be
C
may be
D
can’t be
—Dad,mustIpractise thepianotoday?—No,you        _.You may doit tomorrow.
#76321
A
needn’t
B
mustn’t
C
shouldn’t
D
can’t
---Lucy doesn’t mind lending you her dictionary.---I think she doesn’t, but I ________do so. I’ve already borrowed one.
#74212
A
needn’t
B
mustn’t
C
can’t
D
shouldn’t