The man ___ is wearing a blue jacket is Jim's uncle.

问题描述:

The man ___ is wearing a blue jacket is Jim's uncle.
A.who B.whom C.which D./
可是我感觉A也对啊!朋友们!

应该选A吧.
这是一个定语从句,the man 是先行词,在从句中作主语,whom只能做宾语,所以排除B选项;which只能指物,不能指人,所以排除C选项.选D的话,从句缺少主语就不成立了