根据对话内容，从下面方框中选出恰当的句子补全对话。

A. No, it isn't. B. What's your telephone number? C. What's your name? D. What color is it? E. Is this your schoolbag?

Dave: Excuse me, I can't find my schoolbag.

Sally:

Dave: It's blue.

Sally:

Dave: No, it is not my schoolbag.

Sally: Is that schoolbag yours?

Dave:

Sally: What's in your schoolbag?

Dave: A key, a book, a ruler, a pen and my school ID card.

Sally:

Dave: My first name is Jim. My family name is Green.

Sally:

Dave: 428-6736. Please call me.

Sally: OK. I'll call you when I find it.