These are his English book找出错误并改正

问题描述:

These are his English book找出错误并改正

these are his English books
因为they表示的是:“这些”的意思,所以翻译为:这些都是他的书吗?
所以可以看到:这些书不只一本.书本book要变成复数形式:books.