Question

Finally, I bought the new book,_____I spent twenty yuan, in the bookstore where a friend of mine is the boss.

A．on which

B．which

C．for which

D．that

Answer 1

A

表示在什么上花费多少钱可用spend+钱+on sth，修饰名词书是一个定语从句，书为事物，故可用which，故本题应选A。