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【Theroommusthavebeencleanedyesterday的反意疑问句Theroommusthavebeencleanedyesterday,wasn'tit?还是hasn
题目内容：
The room must have been cleaned yesterday 的反意疑问句
The room must have been cleaned yesterday,wasn't it?还是 hasn't it
是不是如果去掉yesterday答案就不同了呢?优质解答
原句应改为 The room must had been cleand yesterday,wasn't it?这样就变反意疑问句勒~
楼主插个小旗 谢饿
The room must have been cleaned yesterday,wasn't it?还是 hasn't it
是不是如果去掉yesterday答案就不同了呢?
优质解答
楼主插个小旗 谢饿
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