He is a student at Oxford University for a degree in computer science.A. studiedB. study

问题补充：

He is a student at Oxford University, for a degree in computer science.

A. studied

B. studying

C. to have studied

D. to be studying

答案：

A. studied

(答案→)B. studying

C. to have studied

D. to be studying

解析：study与其逻辑主语之间是是主动关系，故用现在分词作伴随状语，故选B 。