请看一道改错题 The lady must have waited for you for a long time,mustn't she?
The lady must have waited for you for a long time,mustn't she?
mustn't->hasn't
为什么呢?
人气：255 ℃ 时间：2019-10-19 20:48:05
解答
当could have
should have
must have 出现时,反义疑问句的助动词用have或者has
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