I know the man is talking to our English teacher.A. whatB. whoseC. whichD. who

问题补充：

I know the man is talking to our English teacher.

A. what

B. whose

C. which

D. who

答案：

A. what

B. whose

C. which

(答案→)D. who

解析：句意：我认识那个和我们英语老师说话的那个人。这里填的是引导定语从句的关系词，先行词是man，而且关系在句中做主语，所以用who；whose谁的，做定语；which指代物；故选D。