题目内容：

They have more choices as to what they buy and from whom.
如何翻译?
as to在这边是“根据”的意思么?
为什么用whom不用who?

优质解答

1 翻译：就买什么和从谁那儿买东西,他们有更多的选择.
2 as to == about / concerning ：有关-- - ,关於- -.
3 from是介词,所以,from + 代词宾格.
5 from whom they buy == who / whom they buy from == who / whom they buy from.

追问：

是不是from后面必须用宾格whom？

追答：

- 是不是from后面必须用宾格whom？ - 是的。