Beerbottlescanberecycledbuttheyneedcleaningthoroughly,...

問題詳情：

 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

知識點：疑問句 反義疑問句

題型：選擇題