Jim who is now our English teacher once as a manager in an international cooperation for

问题补充：

Jim who is now our English teacher once as a manager in an international cooperation for 5 years.

A. has worked

B. had worked

C. was working

D. worked

答案：

A. has worked

B. had worked

C. was working

(答案→)D. worked

解析：考查时态。本题抓住关键词once曾经，故用一般过去时，陈述过去的事实。句意：吉姆，曾经在一家国际公司担当5年经理，现在是我们英语老师。故D正确。