When we were in the college westay in the library devoting ourselves to books.A. should

问题补充：

When we were in the college, westay in the library, devoting ourselves to books.

A. should

B. would

C. can

D. need

答案：

A. should

(答案→)B. would

C. can

D. need

解析：考查情态动词：句意：当我们在大学的时候，我们常常呆在图书馆里面，专注于书本。Would可以表示“过去常常”，should应该，can能够，need需要，选B。