People do exercise every day have a better chance of staying healthy than those don’t.A. w

问题补充：

People do exercise every day have a better chance of staying healthy than those don’t.

A. who; /

B. /; who

C. who; who

D. /; /

答案：

A. who; /

B. /; who

(答案→)C. who; who

D. /; /

解析：本题考察的是定语从句，修饰先行词是名词people或代替人的代词those，关系词用who来连接，本题的含义为每天做锻炼的人比那些什么都不做的人有更好的机会保持健康，故本题选C。