I don't know the man____ ther're talking about

问题描述:

I don't know the man____ ther're talking about
I don't know the man about ____ ther're talking呢
是不是借此在前才用宾格的

这两句都用whom,且第二句只能用whom,第一句用whom较好.介词提前,指人只能用whom不能用who,指物只能用which不能用that.