问题描述:
-I want to know if I_______smoke here.-no,you____.could you see the sign“NO SMOKING” there?
Acan,needn't Bmust,can't Cshall,won't Dmay,mustn't
Acan,needn't Bmust,can't Cshall,won't Dmay,mustn't
问题解答:
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