问题补充:
You must be tired now. Why not to have a rest?
A. to stopping
B. to stop
C. stop
D. stopping
答案:
A. to stopping
B. to stop
(答案→)C. stop
D. stopping
解析:句意:你现在一定累了,为什么不停下来休息一下。Why not 为什么不,后面跟动词原形;stop doing sth. 停止做某事;stop to do sth.停下来去做某事。故选C。