( ) We should keep our classroom . A. clean B. cleaned C. cleaning——青夏教育精英家教网——

摘要：( ) We should keep our classroom . A. clean B. cleaned C. cleaning

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We should keep our classroom _____.

[ ]

A. cleaned
B. clean
C. cleaning
D. to clean

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We should keep our classroom ______ every day．

　　A. clean

B．to cleans

C．cleaning

D．cleaned

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We should keep our classroom ________．

A．clean

B．cleaning

C．cleaned

D．cleans

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