根据对话情境, 从方框中选择适当的句子补全对话。

A．What about the ruler? B．I have her phone number. C．Is this your eraser? D．You're welcome. E．Is she in the classroom now?

A：Excuse me, Tom.

B：Yes, it is. Thank you.

A：The eraser is yours.

B：It isn't mine. You can ask Mary. Her ruler is green.

A：

B：No, she isn't. She is in the library. If you can't find her, you can call her. It's 326-4589.

A：OK. Thank you.

B：