After studying in a medical college for five years John her job as a doctor in the count

问题补充：

After studying in a medical college for five years, John her job as a doctor in the countryside.

A. set out

B. took up

C. set up

D. set off

答案：

A. set out

(答案→)B. took up

C. set up

D. set off

解析：句意：在大学里学习了五年医学之后，约翰在乡村当了一名医生。set out开始； take up从事； set up建立； set off动身。根据句意故选B。