题目内容
【题目】The earth was clean and beautiful. But now some parts are _______. We should stop cutting down more trees. （ ）
A.freshB.coolC.dirty
【答案】C
【解析】
略
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题目内容
【题目】The earth was clean and beautiful. But now some parts are _______. We should stop cutting down more trees. （ ）
A.freshB.coolC.dirty
【答案】C
【解析】
略