I seent 20 dollers or this book怎么改同义句? I __20 dollers ___this book

问题描述:

I seent 20 dollers or this book怎么改同义句? I __20 dollers ___this book
The book ______20dollers.

楼上两位关于cost的过去式写法有误,应是cost (cost,cost)
原句写法应是:I spent 20 dollars on this book.
改写:I spent 20 dollars buying this book.
The book cost me 20 dollars.