I spent two days in finishing reading this book.为什么不是spent.on?_英语解答

I spent two days in finishing reading this book.为什么不是spent.on?

人气：179 ℃　时间：2020-01-28 13:38:30

解答

spend.on sth.
spend.(in) doing sth.
这两个句子可以互换的.你说的的句子可以改写为
I spent two days on reading this book.因为on是介词,所以动词要加ing.