The factory has developed a lot we visited the advanced worker five yeas ago.A. whenB. whi

问题补充：

The factory has developed a lot we visited the advanced worker five yeas ago.

A. when

B. which

C. that

D. where

答案：

A. when

B. which

C. that

(答案→)D. where

解析：考查定语从句。The factory为下文从句的逻辑地点状语，故用where做引导词，选D。