I cost ten yuan for this book.
问题描述：
I cost ten yuan for this book.
答
可选用的答案是：
I paid ten yuan for this book
I spent ten yuan on this book.
I spent ten yuan (in) buying this book.
This book cost me ten yuan.
I bought this book for ten yuan.
这里不能够用cost,因为cost的主语是物,即this book,而不是I.所以有以上几中改法.