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【题目】Our classroom ___ every day. We can study comfortably in it.

A. cleans B. clean C. was cleaned D. is cleaned

【答案】D

【解析】

试题分析:句意:我们的教室每天打扫。我们可以在里面舒服地学习。Classroom是clean这一动作的承受者,该用被动语态。根据every day可知该用一般现在时。所以选D。

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