80、He must have left home yesterday,he?A．hasn’t B．didn’t C．mustn’t D．needn’t
选了A为什么错了?
人气：370 ℃ 时间：2019-08-18 00:11:33
解答
80、He must have left home yesterday,___ he?
A．hasn’t B．didn’t C．mustn’t D．needn’t
选B
因为He must have left home yesterday是表示对【过去的推测】,反义疑问部分应该针对yesterday这个过去的时间,所以用didn't he?
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