题目内容
The cleaners must prevent the street ______.
A.getting dirty | B.from dirty | C.from get dirty | D.from getting dirty |
D
解析试题分析:prevent sb from doing sth预防,阻止某人干某事,from是介词后面接名词或者动名词。故选D,清洁工必须防止大街变脏。
考点:固定短语prevent sb from doing sth
点评:prevent sb from doing sth预防,阻止某人干某事,from是介词后面接名词或者动名词。
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The park _________by the cleaners every two days.
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