题目内容
【题目】Now more and more people prefer __________ to _________ in order to reduce the air pollution.
A. to walk; driving B. walking; driving
C. walking; drive D. to walk; drive
【答案】B
【解析】
试题分析：句意：为了减少空气的污染，现在，越来越多的人喜欢步行而不去驾车。分析：考查固定短语prefer doing sth. to doing sth. 宁愿做什么，也不做某事。故选B
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