The room is very clean because it()by uswas keptis cleanis cleane_英语解答

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

人气：178 ℃　时间：2019-12-29 18:02:28

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.