3.He is teaching in his hometown now but he in a hospital for 10 years.A. workedB. has wo

问题补充：

3.He is teaching in his hometown now, but he in a hospital for 10 years.

A. worked

B. has worked

C. had worked

D. has been working

答案：

(答案→)A. worked

B. has worked

C. had worked

D. has been working

解析：A 他在医院工作十年相对现在来说是发生在过去的动作，应用一般过去时。