The soldiers soon reached was once an old temple the villagers used as a school.A. which

问题补充：

The soldiers soon reached was once an old temple the villagers used as a school.

A. which, where

B. where, which

C. what, which

D. what, where

答案：

A. which, where

B. where, which

(答案→)C. what, which

D. what, where

解析：句意：士兵们很快来到了村民过去用作学校的曾经是古庙的地方。 what引导的从句作reach的宾语，是宾语从句。what在从句中作主语；在这个宾语从句又含有一个which引导的定语从句，作anoldtemple的定语。which在定语从句中作used的宾语。所以选C。