I don't know you. You must have mistaken me _____ someone else.

问题描述:

I don't know you. You must have mistaken me _____ someone else.
[A] as [B] for [C] to [D] with
翻译整句并对答案作出解释
翻译整句并对答案作出解释

mistake A for B是个词组,把A错以为是B的意思
这句话就是说,我不认识你,你认错人了