He usually during the day and gets up night.A. relaxes toB. sleeps inC. relaxes inD. sl

问题补充：

He usually during the day and gets up night.

A. relaxes, to

B. sleeps, in

C. relaxes, in

D. sleeps, at

答案：

A. relaxes, to

B. sleeps, in

C. relaxes, in

(答案→)D. sleeps, at

解析：at night，表示在晚上，主语为三单形式，谓语动词要用三单形式，故选答案为D