It is reported in the papers that the old coins _______under the earth for about 200 years by the time they were discovered.            

A. had buried        B. had been buried       

C. buried           D. were buried

It is reported in the papers that the old coins _______under the earth for about 200 years by the time they were discovered

1. A.
   had buried
2. B.
   had been buried
3. C.
   buried
4. D.
   were buried