问题
选择题
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
答案
D
take up意思是“占据，占领，从事”。
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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
D
take up意思是“占据，占领，从事”。