问题

If you ________ smoke, please go outside.[ ]
A: can
B: should
C: must
D: may
B: should
C: must
D: may
正确答案是:
同类题型
Whatever I explained to them, they insisted ________ to the party.[ ]
What’s the matter? — The shoes don’t fit properlyThey____my feet
TheTV is too noisy, would you mind alittle, please?–Sorry,I will do it right away.
The new secretary is and therefore the manager is satisfied with her work.
What does your English teacher look like—She is a tall young woman______ long hair.