The police got to _________ was once an old yard_________ the workers used as a store.

 A. what ; where     B. which;  where    C. that   ; that    D. what;  which

The police got to ________ was once an old yard that the workers used as a store．

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