where, which, what, when The factory ____ I am going to is the p

where, which, what, when
The factory ____ I am going to is the place ____ my mother used to work many years ago.
【正确答案】：which where
【题目解析】：【考点点击】本题考查定语从句的关系代词和关系副词。【要点透析】第一个空前定语从句的先行项 The factory在定语从句中作to的宾语,因此可以用关系代词 which;第二个空后的定语从句不缺少句子成分,关系副词用 where,在定语从句中作地点状语。