Mrs. White showed her student some old maps from the library.A. to borrowB. to be borrowed

问题补充：

Mrs. White showed her student some old maps from the library.

A. to borrow

B. to be borrowed

C. borrowed

D. borrowing

答案：

A. to borrow

B. to be borrowed

(答案→)C. borrowed

D. borrowing

解析：句意：怀特老师给学生们展示了一些从图书馆借来的老地图。old maps和borrow之间是被动关系，所以用borrowed做定语表示被动意义，这里过去分词短语作定语，故选C。