—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
推荐题目
No matter how healthy you _____be，you need to consult a doctor from time to time.
#63150
A
should
B
will
C
must
D
may
If you have finished most of the work, you ______ start working so early tomorrow.
#77689
A
can’t
B
mustn’t
C
couldn’t
D
needn’t
I _____ have watched that movie --- it’ll give me horrible dreams.
#63539
A
couldn’t
B
needn’t
C
shouldn’t
D
mustn’t
One ought ________ for what one hasn't done.
#62937
A
not to be punished
B
to not be puished
C
to not punish
D
not be punished
—You look so tired. —Yes. The loud noise upstairs stopped me the whole night.
#77377
A
slept
B
to sleep
C
fell asleep
D
falling asleep