题目内容

His room _____ by him when I entered the room.

A. was being cleaned
B. was being cleaning
C. was cleaned
D. has been cleaned

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The question asked by him is hard _____ .

A. to be answered
B. to answer
C. to be answering
D. for answer

英语的语态一般有_______。

A. 主动语态
B. 被动语态
C. 完成时态
D. 将来时态

英语中所有的动词都有被动语态。

A. 对
B. 错

被动语态的时态变化只改变助动词be的形式。

A. 对
B. 错

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