The girl ____ is singing is Tom's sister.
问题描述:
The girl ____ is singing is Tom's sister.
A:which B:that C:who D:whom该选哪个?为什么?
答
C:who
涉及到人的定语从句,引导词用who为什么我们的答案是选B:that?B和C都可以,最好选B