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    精英家教网 > 初中英语 > 题目详情

    【题目】It is our duty _________our hometown clean and beautiful. We must do something for it.

    A. to keep B. keeps C. keeping

    【答案】A

    【解析】句意：保持我们家乡的干净和美丽是我们的职责。这里考查的是it is+名词+to do sth.结构。故选A。

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