---How soon will you finish your college?-.A. After a yearB. In a yearC. Before a yearD

问题补充：

---How soon will you finish your college?

---.

A. After a year

B. In a year

C. Before a year

D. A year before

答案：

A. After a year

(答案→)B. In a year

C. Before a year

D. A year before

解析：时间短语辨析。After a year一年后，用于过去时态；In a year一年后，用于将来时态；Before a year无此用法； A year before一年前。根据上文，多久你就大学毕业了？可知选B。