You look tired,please stop ____a rest A .have B.to have C.having D.has

答案是B

B.to have

B
to have 是不定式作stop的目的状语，停下来是为了休息；而having是动名词，承受了stop的动作，是停止休息，显然词义错误；have和has是谓语动词形式，这里要求非谓语动词

to have

B,停下来休息一下,考stop to do stop doing 区别参考如下
stop to do　停止,中断做某事后去做另一件事.
stop doing　停止做某事.
　　They stop to smoke a cigarette.他们停下来,抽了根烟.
　　I must stop smoking.我必须戒烟了.
典型例题
She reached the top of the hill and stopped ___　on a big rock by the side of the path.
A.to have rested　B.resting　 C.to rest　D.rest
答案：C.由题意可知,她到了山顶,停下来在一个路边的大石头上休息.因此,应选择"stop to do sth.停下来去做另一件事".而不仅仅是爬山动作的终止,所以stop doing sth.不正确.

B
stop to do sth停下来做（另一件事）
stop doing sth停止做某件事

to have
stop doing 停止做某事
stop to do sth 停下来去做某事 剧中意思是停下来，去休息一会儿
希望能采纳，谢谢