It has been proved that taking exercise does good to one’s health.
A. mostly
B. formally
C. regularly
D. publicly
网友回答
A. mostly
B. formally
(答案→)C. regularly
D. publicly
解析：本题考查副词。mostly主要地; formally正式地; regularly有规律地；publicly公开地。根据句意：已经证明有规律地运动对健康有益。故选C。