A: May I smoke here? B: If you ______ choose a seat in the smoking section.A.shouldB.coul

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A: May I smoke here? B: If you ______, choose a seat in the smoking section.

A.should

B.could

C.may

D.must

请帮忙给出正确答案和分析,谢谢!

热搜:a是b的充分条件,b是a的必要条件吗