the room is in the terrible mess ,it can not have been cleaned .为什么用can not have been
the room is in the terrible mess ,it can not have been cleaned .为什么用can not have been
为什么不用should not have been
为什么不用should not have been
英语人气:332 ℃时间:2020-02-02 12:55:26
优质解答
因为can’thave done 的意思是(过去)肯定没有做某事,而且在句子中要表示被动,所以用been cleaned
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