Theroomisverycleanbecauseit()byuswaskeptiscleaniscleanedwillbeswept说下原因谢谢了
2022-07-03 33次 反馈错误 加入收藏 正确率 : 100%
题目内容：
The room is very clean because it()by us
was kept
is clean
is cleaned
will be swept
说下原因谢谢了
优质解答
is cleaned .从前面的is可以判断是现在时,所以是is,由于by us可以知道是被动语态,所以是选一个动词的过去分词.
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