【題目】If you want to be a green person, you ought_____energy and _____air pollution.

A. to save, reduceB. saves, reducesC. saved, reducedD. saving, reducing

【答案】A

【解析】

句意：如果你想要成為一個(gè)環(huán)保的人，你應(yīng)該節(jié)約能源，減少空氣污染。ought to do sth應(yīng)該做某事，故第一空為to save。and前后并列，故第二空用動(dòng)詞原形reduce。故選A。

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