强调句型It was along the Missippi River /that/where Mark Twain spent much of his childhood

题目

强调句型It was along the Missippi River /that/where Mark Twain spent much of his childhood
这个句子该填th还是where?这是强调句还是地点状语从句啊?

答案

这个是强调句
强调句和定语从句最大的区别在于,强调句去掉it is...that后剩下的成份仍是一个句子.