中文谷Beerbottlescanberecycledbuttheyneedcleaningthoroughly,...
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问题详情：
Beer bottles can be recycled but they need cleaning thoroughly, ________ they?
A. needn't B. can't C. mustn't D. don't
【回答】
D
知识点：疑问句 反义疑问句
题型：选择题
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