I often think of the years I worked with the foreigners has had a great effect on my la

问题补充：

I often think of the years I worked with the foreigners, has had a great effect on my later life.

A. that; which

B. when; which

C. which; that

D. when; who

答案：

A. that; which

B. when; which

C. which; that

D. when; who

解析：根据句意,第一空需填关系副词when; 第二空which引导非限制性定语从句,指代主句的整个情况。