YOU___buy the TV guide for next week.I have already bought a copy.选哪个?

分类: 作业答案 • 2021-12-03 11:35:37

问题描述：

YOU___buy the TV guide for next week.I have already bought a copy.选哪个?
A.mustn't B.needn't C.don't have to D.can't

答

选择C.
由题意可知此处应填“不必”,而B和C都有不必的意思.needn't强调主观上的不必,而don't have to强调客观,因此选择C.