To keep healthy,Professor Johnson cycling as a regular form of exercise after he retired. [ ]A. took

题目简介

To keep healthy,Professor Johnson cycling as a regular form of exercise after he retired. [ ]A. took

题目详情

To keep healthy,Professor Johnson           cycling as a regular form of exercise after he retired.
A. took up
B. caught on    
C. carried out
D. made for
题型:单选题难度:中档来源:安徽省同步题

答案

A

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