( ) 2. — Do you know ________? — Yes, I do. 如下~~

( ) 2. — Do you know ________? — Yes, I do. 如下~~
( ) 2. — Do you know ________? — Yes, I do.
A. whom she is looking after B. if she is looking after Tom
C. who is she looking after D. whether is she looking after Tom or not
选什么?为什么 ?
还有 、A项中的 WHOM是怎么 用的啊?、
答案是A啊 ~~ 请问WHOM 是怎么用的