题目内容
【题目】To prevent the river from __________ again, the government ordered that the factory stop running.
A. polluting B. polluted
C. having polluted D. being polluted
【答案】D
【解析】句意:为了防止河流被再次污染,政府命令那个工厂停止运营。prevent...from doing sth. 阻止……做某事,后跟动词-ing形式;因为动词pollute与the river有被动关系,故用动词-ing形式的被动式:being +过去分词,故D项正确。
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