This is the school _______ I studied three years ago.

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

This is the school _______ I studied three years ago.

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

This is the school _______I studied five years ago.

A. where B. when　 C. that D. which

This is the school ___________ I worked seven years ago.

1. A.
   in which
2. B.
   in that
3. C.
   which
4. D.
   that