Last Sunday we visited the factory my father ever worked for four years.A. whereB. which

问题补充：

Last Sunday, we visited the factory my father ever worked for four years.

A. where

B. which

C. what

D. that

答案：

(答案→)A. where

B. which

C. what

D. that

解析：句意：上周六，我们参观了我父亲曾经工作过四年的工厂。位于地点名词the factory后的定语从句中谓语worked是不及物动词，因此不接宾语，故用地点状语，因此此处用关系副词where。故选A。