Question

you must be tired.why not{ }a rest? A.to stop to have B.to stop having C.stop to have

D.stop having

Answer 1

C，why not do sth ,stop to do停下来去做另外一件事，stop doing 停下来去做同一件事
根据题意 have a rest 是另外一件事，所以选C
愿采纳

Answer 2

直接在why not 后加动词短语.
而STOP stop to do sth. 停下来做某事 指换一件事做
stop doing sth. 不做现在正在进行的事
揣测语义，选C.