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【題目】The scientists in China are trying ______ways to reduce pollution.

A. look for B. find out. C. to look for D. found out

【答案】C

【解析】

句意：中國的科學家正在努力尋找減少污染的方法。look for尋找，find out查明。根據(jù)賓語ways to reduce pollution可知此處表示尋找減少污染的方法，try to do sth努力做某事，故用動詞不定式to look for。故選C。

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