Mrs.White showed he students some old maps------from the library.a to borrow b to be borrowedcborrowed dborrowing 选哪一个 原因是什么

问题描述:

Mrs.White showed he students some old maps------from the library.a to borrow b to be borrowed
cborrowed dborrowing 选哪一个 原因是什么

C
过去分词做后置定语,修饰maps ,表示被动结构.