The factory________ I am going to is the place________ my mother used to work many years ago．

1. A.
   where; where
2. B.
   where; which
3. C.
   which; where
4. D.
   that; which

The factory ___ I am going to is the place ___ my mother used to work many years ago.

A. where, where           B. where, which            C. which, where        D. that, which

 The factory ______ I am going to is the place ______ my mother used to work many years ago
A where, where           B where, which   C which, where          D that, which

 The factory ___I am going to is the place ___my mother used to work many years ago.

A. where, where     B. where, which     C. which, where     D. that, which