You must be tired now. Why not a rest?A. to stop to haveB. to stophavingC. stop to haveD.

问题补充：

You must be tired now. Why not a rest?

A. to stop to have

B. to stophaving

C. stop to have

D. stophaving

答案：

A. to stop to have

B. to stophaving

(答案→)C. stop to have

D. stophaving

解析：why not表示建议，是为什么不的意思，后常跟动词原形，累了应该停下来休息，stop to do sth表示停下来做另外一件事，故选C。