Miss Li ______ as a secretary for five years in the company, and now she is general manager of it.

1. A.
   serves
2. B.
   served
3. C.
   had served
4. D.
   has served

Miss Li _____as a secretary for five years in the company,and now she is a general manager of it.?

    A.serves                B.served?

    C.had served          D.has served?

Miss Li ___ as a secretary for five years in the company, and now she is general manager of it.

Miss Li ___ as a secretary for five years in the company, and now she is general manager of it.

Miss Li ___as a secretary for five years in the company, and now she is general manager of it.

A. serves          B. served         C. has served       D. had served