They are my books.改成单数

问题描述:

They are my books.
改成单数

It`s my book.
别忘了加标点哈~

They are my books.改成单数
it is my book
我是英语教师,不明可问我。答是对的。放心用。

It is my book.我是初二的学生,这个我初一就上过了,绝对没错

it is my book

It is my book .