You must be tired. Why not a rest?
A. to stop to have
B. to stop having
C. stop to have
D. stop having
网友回答
A. to stop to have
B. to stop having
(答案→)C. stop to have
D. stop having
解析：why not表示建议后跟动词原形，故不选AB，你累了，那么就应该停下来休息，stop to do表示停下来做某事，符合题意，故本题选C。