Is this pen yours,Sam?
No,It's isn't mine.
And Is this pen yours,Lily?
Yes,thank you very much.
You're welcome.
Whose pencil is it?
Jim,Is this pencil yours?
Yes,It's mine.
Here you are.
假设你们班有一个失物招领箱,里面有钢笔铅笔蜡笔等文具有英语写一段话开头Is this pen your,
Is this pen yours,Sam?
No,It's isn't mine.
And Is this pen yours,Lily?
Yes,thank you very much.
You're welcome.
Whose pencil is it?
Jim,Is this pencil yours?
Yes,It's mine.
Here you are.