◎ 题干
______ the window. It's clean.

[     ]

A. Not clean
B. Aren't clean
C. Don't clean
D. Clean
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“______ the window. It's clean. [ ]A. Not clean B. Aren't clean C. Don't clean D. Clean …”主要考查了你对  【祈使句】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。