【题目】I showed the book to Tina ______ I borrowed from the public library.
A.when
B.who
C.which
D.whose

【答案】C
【解析】句意：我把从公共图书馆借来的书给了蒂娜。先行词the book.指物，在定语从句中作borrow 的宾语，用which引导定语从句，故选C.