PPT预览
Is this your book?is this yours?
Yes, it's mine.It's my book.
Is that your bag? Is that yours?
No, it's not mine.It's your bag.
My crayon. Your crayon. These are our crayons.
His crayon. Her crayon. Those are their crayons.
This is mine. That is yours. These are ours.
This is his. That is hers. Those are theirs.
These are our crayons. They are ours.
Those are their crayons. They are theirs.
