题目内容
Ⅲ.单项选择
1. Waste paper shouldn’t everywhere. It's our duty to keep our classroom clean.
A. be thrown B. throw
C. is thrown D. threw
1.A
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题目内容
Ⅲ.单项选择
1. Waste paper shouldn’t everywhere. It's our duty to keep our classroom clean.
A. be thrown B. throw
C. is thrown D. threw