i serve three meals every day and do almost everything for him,but he still fails me.-----I’m sorry to say that’s _________ you are mistakenA.how b.what.c.where.d.which我觉得除了a以外,其他几个答案都说的通啊.

i serve three meals every day and do almost everything for him,but he still fails me.-----I’m sorry to say that’s _________ you are mistakenA.how b.what.c.where.d.which我觉得除了a以外,其他几个答案都说的通啊.
i serve three meals every day and do almost everything for him,but he still fails me.
-----I’m sorry to say that’s _________ you are mistaken
A.how b.what.c.where.d.which我觉得除了a以外,其他几个答案都说的通啊.

i serve three meals every day and do almost everything for him,but he still fails me.-----I’m sorry to say that’s _________ you are mistakenA.how b.what.c.where.d.which我觉得除了a以外,其他几个答案都说的通啊.
That’s ____C_____ you are mistaken
==That's what you are mistaken for.
==That's something that you are mistaken for.
==That is the thing which you are mistaken for

我也觉得选c 合适

选where吧，毕竟人家是副词。。。

选what ,where，都对，这是从句解释say的。