Stop( )when you are tired A.having a rest B.have rest C.restingD.to have a rest

问题描述:

Stop( )when you are tired A.having a rest B.have rest C.restingD.to have a rest

选D.stop doing sth是“停止做某事”,doing是stop 的宾语,是要停止的动作,stop to do sth 是“停下来开始做某事”,to do是stop的状语,表示目的,是要开始做的事情.翻译过来就是当你感到累的时候要停下来休息一下.