It's an English book.(改为复数）
问题描述：
It's an English book.(改为复数）
Are these Chinese maps?(作否定回答）
Those are my books.(改为一般疑问句）
These are Japanaese cars.(对Japanaese cars进行提问）
答
They're English books.
No,they are not.
Are these your books?
What are these?