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To keep our classroom clean, please     

来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/07/19 12:33:04
To keep our classroom clean, please                 waste paper whenever you see it.
[     ]
A. take up        
B. pick up        
C. put up        
D. send up
B
Our classroom must ______ clean eve We have to stay in the classroom  to wait  for our please,  please  please.  阅读理解.      Encouraging pupils to keep no ......   , .,.  -)  ...  ..