-Sorry,I have to___now.It's time for class.-Ok ,I will call back later.

问题描述:

-Sorry,I have to___now.It's time for class.-Ok ,I will call back later.
A.hang up B.give up
我选的是B,是错误的.为什么错?
答案A为什么是对的?

A 挂断 B 放弃
看题目中后面那句,好的,我稍后给你打过去
说明他们在打电话.
所以选A
意思是 ,不好意思 ,我不得不挂断电话了.要上课了.