Is that your backpack?          .

A．No, it isn’t.                        B．Yes, it is. It’s my backpack.

C．It’s her backpack.           D．No, it isn’t. It’s her backpack

A: Excuse me, Sonia. Is this your backpack?
B: No, it isn’t. My backpack is here. You can ask the girl in red. I think it’s hers.
A: OK. Excuse me. Is this your backpack?
C: Oh, yes.
A: Here you are.
C: Thank you very much.
A: That’s all right. Oh, what’s your name, please?
C: My name is Jenny.
A: Are you in Class Two?
C: No. I’m in Class Eight. And what’s your name?
A: Ah, it’s a secret. Goodbye.
C: Bye.
【小题1】The backpack is ________.