关于从句的.

题目

关于从句的.
During World War II a mother in Cincinnati received a letter from her son in the army in which he spoke of a woman in a village in Normandy who had taken him into her home when he was wounded and hungry,and hidden him from the Germans.本段中,in which后面是定语从句吗?in which能否改成where?in 能否后置到句子里?不是定语从句的话是什么句式呢?
到底是定语从句还是同位语从句呢？我想知道后去好好学习下

答案

1、是定语从句.
2、不能用where,where一般用修饰地点、场所.这里which指letter.
3、此处in不可后置,因后面又是复合成份,会造成混乱,不好呼应