Tired and disappointed, the rescue team finally reached _____ used to be a village.

Tired and disappointed, the rescue team finally reached _____ used to be a village.

A.where

B.that

C.when

D.what

答案及解析： D

解析：

考查宾语从句。Reached之后跟的是宾语从句，且从句_{__} used to be a village.缺少主语，所以选D。