didn't
这里句子中的must have done 是“肯定已经做了……”的特殊结构,主语he的时态是过去式,而不是完成时.
所以haven't是一个陷阱.不要上当咯~
【英语】He must have watched the match yesterday,_____ (didn't / haven't) he?为什么?
【英语】He must have watched the match yesterday,_____ (didn't / haven't) he?为什么?
英语人气：430 ℃时间：2019-09-18 04:18:52
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