The man is talking with my teacher is Tom’s father.A who B whom C whose D which

问题补充：

The man is talking with my teacher is Tom’s father.

A who B whom C whose D which

答案：

解析：考察定语从句。先行词the man为下文定语从句的逻辑主语，指人，故引导词用who，选A，这个正在和我的老师谈话的男人是汤姆的父亲。