[题目]The river that is seriously polluted is danger to the villagers.A. a B. an C. the D. / 题目和参考答案——青夏教育精英家教网—

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【题目】The river that is seriously polluted is________ danger to the villagers.

A. a B. an C. the D. /

【答案】A

【解析】句意：污染严重的河流对村民来说是个危险。danger名词，泛指一般意义的“危险”，通常是不可数名词；表示具体意义的造成危险的原因或人（物）等，或指威胁、危害等，是可数名词。故选：A。

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