Our classroom ___________ every day.

admin2009-06-21 76

问题 Our classroom ___________ every day.

选项 A、should clean
B、cleans
C、should be cleaned

答案C

解析该句是含有情态动词的被动语态。其结构是情态动词+be+过去分词。

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公共英语一级笔试

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