题目内容
( ) 7. Things made of plastic are usually_,but they are_to become pollution.
A. cheap; easy B. cheap; easier C. cheaper; easy D. cheaper; easier
A
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题目内容
( ) 7. Things made of plastic are usually_,but they are_to become pollution.
A. cheap; easy B. cheap; easier C. cheaper; easy D. cheaper; easier
A