Thereisnolightinthedormitory.Theymusthavegonetothelectu...
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問題詳情:
There is no light in the dormitory. They must have gone to the lecture,________?
A. didn’t they B. don’t they C. mustn’t they D. haven’t they
【回答】
D知識點:疑問句 反義疑問句
題型:選擇題
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