一道选择填空题：用whom还是who?为什么?

一道选择填空题：用whom还是who?为什么? 高中英语用who,whom,that,which填空填空问题一道 用that,who,whom,whose,which填空 用that who whom which 填空 用who,whom,that,which填空 用who whom that which 填空 用that,which,who,whose,whom填空 用that which who whom填空 英语who was it invented by 用who 还是whom? I go to Shanghai with her对her 提问用who还是whom?为什么? he is difficult from ___ he used to be.用what还是whom,who为什么 你刚刚帮我做的英语应该用who 还是whom为什么?