He must have lost his watch yesterday,_______he?
He must have lost his watch yesterday,_______he?
A didn'tB mustn'tC hasn't D needn't
为什么用A?
A didn'tB mustn'tC hasn't D needn't
为什么用A?
英语人气：259 ℃时间：2019-10-08 08:46:20
优质解答
A,must have done 表示对过去某件事的猜测,反义疑问句用过去式!
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