题目内容：

W: Hello, Tom.

M: Hello, Mary, 1.

W: Yes. I’m asked to tell something interesting in English before the class begins.

M: Oh, I see. 2.

W: You’re right. I need to practice on the stage before they all come.

M: 3.

W: Yes, here, in my pocket...Oops, where is it?

M: Don’t worry. 4.

W: No, not in the bag, either. I’m afraid. I left it at home.

M: 5.

W: Aha! It’s just the key to the classroom! Thank you so much.

A. Nice to meet you.

B. So you want to get to the classroom earlier to make some preparations?

C. What’s that around your neck?

D. Maybe you put it in your schoolbag.

E. Do you have the key to the classroom?

F. You’re going to school rather early today.

G. What’s the story about?