He _________ in American for five years, and now he works in Shanghai.

A. have worked     B. worked     C. had worked    D. have been working

He _________ in American for five years, and now he works in Shanghai.

A. have worked　　

B. worked　

C. had worked

D. have been working

 He ________ in American for five years, and now he works in Shanghai.

A. have worked  B. worked  C. had worked  D. have been working

 He ________ in American for five years, and now he works in Shanghai.

A. have worked  B. worked  C. had worked  D. have been working

He ________ in American for five years, and now he works in Shanghai.