If you ______ smoke, please go outside.
#74443
A
can
B
should
C
must
D
may
推荐题目
 My sister met him at the street yesterday afternoon, so he __________ your lecture.
#63076
A
shouldn’t have attended
B
needn’t have attended
C
mustn’t have attended
D
couldn’t have attended
----Must I finish the jod at seven o’clock?----No, you___________
#62954
A
mustn’t
B
can’t
C
needn’t
D
don’t have
—Must I go there right now?—No,you ________.You ________ go there before supper.
#62512
A
mustn't;need
B
needn't;may
C
can't;need
D
won't;can