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。