---- May I smoke here?--- If you      , choose a seat in the smoking section.
#62982
A
should
B
could
C
must
D
may
推荐题目
The Spring Festival   in January or February.
#77617
A
celebrates
B
is celebrated
C
celebrated
D
was celebrated
—Must I finish my homework now?—No, you _______.
#78209
A
mustn’t
B
may not
C
needn’t
D
don’t