The man whom your father talked to amoment ago___be our new teacher.

分类: 作业答案 • 2021-12-27 15:05:24

问题描述：

The man whom your father talked to amoment ago___be our new teacher.
A.mustn't B.cannot C.needn't D.dare not
选哪个?为什么?意思是?

答

很简单啊,选B,情态动词can表示推断时用于否定与疑问句,must只用于表示肯定的推断,c\d从意思上可以排除