I have a friend would like to speak to you.A. whichB. whatC. whoD. whom

问题补充：

I have a friend would like to speak to you.

A. which

B. what

C. who

D. whom

答案：

A. which

B. what

(答案→)C. who

D. whom

解析：本句考查的定语从句，考查的关系代词，根据被修饰词，因为被修饰词为人，故选将AB去掉，有根据关系代词在从句中作为主语，故选答案为C。