this is the house + i lived in the house last year 怎么把这两句话用定语从句合在一起

题目

this is the house + i lived in the house last year 怎么把这两句话用定语从句合在一起
中间要用关系副词where还是关系代词in which? 为什么? 比如说this is the house where i lived last year 或者是 this is the house in which i lived last year 这两句哪个对?为什么?

答案

你说的都对.
this is the house where i lived last year
=this is the house in which i lived last year
where = in which 意为：in the house