This is my new backpack.
改为复数句: These are our new backpacks.
They're my aunts.
改为单数句: She is my aunt.
Those are my CD.
对my CD提问:What are those?
如果我的销铅扰回答亏旦对你有帮助，请及时激闭采纳，谢谢！
1.This is my new backpack.改为复数句
These are our new backpacks.
2.They're my aunts.改为单数句
He is my aunt.
3.Those are my CD.(对my CD提问）睁清困
Whose CD are those?
祝悉念你开心如意正启！
These are our new backpacks.
It's my aunt.
What are those?
there're my new backpacks this's my aunt what's that
擦，这个是什么语言。。