Question

---Where did you get to know her?
---It was on the farm      we both once worked in the 1970s

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

Answer 1

D
考查定语从句。先行词on the farm为从句的逻辑地点状语，故引导词用where，故选D。