题目内容

【题目】To keep healthy, Professor Johnson ______ cycling as a regular form of exercise after he retired.

A. carried out B. caught on C. took up D. made for

【答案】C

【解析】试题分析:为了健康,Johnson教授在退休之后开始把骑单车作为一种锻炼方式。根据句意可知,take up:开始从事,开始做,故选Ccarry out:实施;carry on:进行; make for:弥补。

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