题目内容
【题目】 They ______ going to school on foot before they went to high school.
A. used to B. are used to
C. were D. were used to
【答案】D
【解析】
试题分析:句意:在他们去高等学校之前,他们已经习惯步行去学校了。此题考查固定短语be used to doing sth习惯做某事,根据句意,故选D。
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