I feel tired and sleepy.Why not stop yourself?A. relaxingB. to relaxC. restingD.

问题补充：

--- I feel tired and sleepy.

--- Why not stop yourself?

A. relaxing

B. to relax

C. resting

D. to work

答案：

A. relaxing

(答案→)B. to relax

C. resting

D. to work

解析：句意：我感到又累又困。——为什么不停下来放松一下自己？stop后接动名词表示停止正在做的动作，接不定式表示停下来去做另一件事情。结合语境可知选B。