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-May I smoke here? -If you , choose a seat in the smoking section. [ ] A.must B.

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-May I smoke here? -If you , choose a seat in the smoking section. [ ] A.must B.

-May I smoke here?

-If you ________ , choose a seat in the smoking section.

[]

A.must

B.should

C.may

D.can

试题答案

答案:A