题目内容：

A: Hello, this is Changying Concert Hall. Can I help you?

B: Hi. 1.

A: Hold on a moment, please! Uh, yes, there are a few left.

B: That's great! 2.

A: At 7:30. And it will last about two hours.

B: Sounds good. How can I book it?

A: 3. Either WeChat or Alipay is Okay.

B: Got it. Where can I get the ticket?

A: 4. You'd better arrive at least half an hour before the show starts.

B: All right. By the way, is there a parking lot nearby?

A: Yes，there's one.

B: 5.

A: You're welcome. What else can I do for you?

B: Nothing much. Bye.

A.When will it start?

B.Thank you for your help. .

C.Because Langlang is my favorite pianist.

D.Do you still have tickets to the piano concert tonight?

E.You can get an e-ticket online or exchange the paper ticket at the gate.

F.Just go to our website, fill in your information, choose a seat and pay online