阅读短文，选择最佳答案。

B

Jenny is dialing（正在拨）a telephone number.

Frank: Hello!

Jenny: Hello! Is Lisa at home？
Frank: I'm sorry. There is no Lisa here.
Jenny: Is it 7276639?

Frank: No, it isn't. It's 7276693.

Jenny: I'm sorry. I dialed the wrong number.
Frank: That's all right. Bye.

(Jenny dials the right number.)
Jenny: Hi, Lisa! This is Jenny.

Lisa: Hi, Jenny. What's up?

Jenny: Do you know Ms. Brown's telephone number?

Lisa: Ms. Brown, our English teacher?

Jenny: Yes. Do you know her phone number?

Lisa: Yes, I do. It's 2843361.

Jenny: Thanks, Lisa. Lisa: You're welcome.