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

题目简介

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

题目详情


To keep healthy, Professor Johnson _________ cycling as a regular form of exercise
after he retired.
A.took upB.caught onC.carried outD.made for
题型:单选题难度:偏易来源:不详

答案

A

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