To keep healthy,Professor Johnson____ cycling as a regular form of exercise after he retired. (NMET 2004上海卷第54题)
A. took up B. caught on C. carried out D. made for
To keep healthy,Professor Johnson____ cycling as a regular form of exercise after he retired. (NMET 2004上海卷第54题)
A. took up B. caught on C. carried out D. made for
A