题目内容
7.-Your room is really clean.-It _____ this morning.( )
| A. | cleans | B. | was cleaned | C. | is cleaned | D. | will be cleaned |
分析 -你的房间真得很干净.
-今天早上打扫的.
解答 答案:B 根据this morning可知,这是表示过去的时间状语,Your room is really clean"现在房间干净,说明过去打扫的",所以运用一般过去时态;又因为主语it是动词clean的承受者,应该用被动语态.一般过去时态的被动语态的构成是:was/were+动词的过去分词,主语是单数,所以用助动词用was,故选B.
点评 判断动词的语态,要看看主语是谓语动词的执行者还是承受者.判断动词的时态,要通过所给的时间状语去判断动词存在的状态.要记住各种时态和语态的结构形式.
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