To keep healthy most retired old people jogging as a regular form of exerciseA. take up

问题补充：

To keep healthy, most retired old people jogging as a regular form of exercise．

A. take up

B. make up

C. carry out

D. hold out

答案：

(答案→)A. take up

B. make up

C. carry out

D. hold out

解析：考查短语辨析。A占据，从事于，开始做；B化妆，编造，弥补，组成；C执行；D伸出；坚持，隐瞒；句意：为了保持健康，大部分退休的人都把慢跑作为一种锻炼的方式。本题中take up表示从事于。故A正确。