It was along the Mississippi River_____(that/where)Mark Twain spent much of his childhood.
问题描述：
It was along the Mississippi River_____(that/where)Mark Twain spent much of his childhood.
选填并分析句子成分告诉我为什么
答
选that ,强调句型
正常的语序是：
Mark Twain spent much of his childhood along the Mississippi River.
马克吐温 大部分童年时光 都是在密西西比河沿岸度过的
主语 谓语宾语 状语
现在为了强调状语,即密西西比河沿岸,将状语提前,强调句型格式是：
it is/was +强调部分 that 句子其他部分