题目内容
() 3. The workers in Huashan have to the rubbish to keep the mountain clean.
A. turn up B. pick up C. mix up D. give up
3.B
3.B
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题目内容
() 3. The workers in Huashan have to the rubbish to keep the mountain clean.
A. turn up B. pick up C. mix up D. give up
3.B