题目内容
【题目】Standing at the top of the hill, we saw the train gradually __________ and disappeared in the distance.
A. swept up B. picked up
C. put up D. speeded up
【答案】D
【解析】句意:我们站在山顶,看着火车慢慢提速,消失在远方。sweep up大扫除;收拾干净;pick up 捡起;获得;收拾;接人;put up建造;举起;供给……住宿; speed up 加速。
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