The cleaners must prevent the street ______.A.getting dirtyB.from dirtyC.from get dirtyD.from getting dirty
网友回答
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。