I'm sorry I () see clearly,What does it say?A.May b.Can't c.Mustn't d,Must

问题描述:

I'm sorry I () see clearly,What does it say?A.May b.Can't c.Mustn't d,Must

这道题选B.
can't 在这里是情态动词 意为不能
句意:对不起,我不能清楚的听到,他说什么?