一道初中英语题,求解!求详细答案

问题描述:

一道初中英语题,求解!求详细答案
After I come back to China, I often _______ my friend in England.
A、hear fromB、heard from C、get a letter from
抱歉,题目错了,
应该是,After I went back to China, I often _______ my friends in England.
A、hear fromB、heard from C、get a letter from

答案选B.
after 后面加过去式,主句时态也尽量过去式因为主句没有明显时间说明.C没有这说法,hear from就是收到来信lz懂了吗??