I wonder that my children have picked up such words.A. that it isB. where is itC. where i

I wonder that my children have picked up such words.
A. that it is
B. where is it
C. where it is
D. it is where

A. that it isB. where is it(答案→)C. where it isD. it is where解析：考查强调句型。我想知道我的孩子在哪学到的这些词语。宾语从句要用陈述语气。 选C。

这个答案应该是对的