with his graduation design he has been working in the library for a week.A. Having occupi

问题补充：

with his graduation design, he has been working in the library for a week.

A. Having occupied

B. Occupying

CBeing occupied

D. Occupied

答案：

A. Having occupied

B. Occupying

C. Being occupied

(答案→)D. Occupied

解析：考查非谓语动词。be occupied with 忙于某事，Occupied with 在句中作状语。句意：忙于他的专业设计，他在图书馆工作了一周。所以选D。