这个句子变成被动语态,怎么变?
这个句子变成被动语态,怎么变?
someone must have turned on the light without your notice.
someone must have turned on the light without your notice.
英语人气：649 ℃时间：2019-08-17 16:47:51
优质解答
被动语态的构成：be + 过去分词,只要把 be 按照各种时态要求改变就会成为被动语态.一般现在：is/are/am + 过去分词一般过去：was/were + 过去分词一般将来：will be + 过去分词过去将来：would be + 过去分词完成时...
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