问题
选择题
To keep healthy, Professor Johnson _______ cycling as regular form of exercise after he retired.
A．tookup
B．caughton
C．carriedon
D．madefor
答案
答案：A
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To keep healthy, Professor Johnson _______ cycling as regular form of exercise after he retired.
A．tookup
B．caughton
C．carriedon
D．madefor
答案：A