I am sorry.I——go now.my father told me on the phone that my mother was ill.横线填什么更恰当!

题目

I am sorry.I——go now.my father told me on the phone that my mother was ill.横线填什么更恰当!
a.can
b.may
c.have to
d.can not
是说他必须走了,还是不能来啊?
我觉得应该是D?

答案

做英语题,你得联系上下文.妈妈生病在家,他肯定得离开现在的地点,回家去.所以选c.