—Daddy,I’verunoutofmypocketmoney.Ispent100yuan

問題詳情：

—Daddy, I’ve run out of my pocket money. I spent 100 yuan ______ some favorite books.

—OK. Here you are. But make sure you save money as well.

A for         B on        C with         D. at

【回答】

B

知識點：介詞和介詞短語

題型：選擇題