He’s got into the habit of running a while before going to bed don’thim from doing it.A. a

问题补充：

He’s got into the habit of running a while before going to bed，don’thim from doing it.

A. ask

B. prevent

C. make

D. refuse

答案：

A. ask

(答案→)B. prevent

C. make

D. refuse

解析：prevent...from doing 阻止……发生。