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

题目简介

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

题目详情

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

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

题型:单选题难度:中档来源:同步题

答案

D

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