问题
May I smoke in the room? –No, you______________. It’s a non-smoking room..
A:mightn’t
B:won’t
C:needn’t
D:mustn’t
B:won’t
C:needn’t
D:mustn’t
正确答案是：
同类题型
There ________ elephants if we don’t protect them now.
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Children’s brains cannot develop properly _________ they lack protein
My cousin ________ works hard and the teacher likes him.–He is a good student.