题目内容：

补全对话(方框中有两项是多余的).

A: Hello, this is Renmin Opera House.31.1.

B: Oh, hi. Do you still have tickets for the piano concert tonight?

A: One moment, please. Uh, yes, there are a few left.

B: That's great! 32.2.

A: At 7：30.

B: How long will it last?

A: It will last about two hours.

B: Sounds great. Can I book(预订) one ticket now?

A: Yes. 33.3.

B: Well, but how can I do it?

A: Just go to our website, fill in the form with your information, choose a seat and pay online.

B: Sounds easy. 34.4.

A: At the gate at least half an hour before the show starts.

B: 35.5.

A: You're welcome.

A.When will it start?

B．You can book it on our website.

C.What can I do for you?

D.Enjoy yourself.

E.Where can I get the ticket?

F.Thank you for your help.

G.It's wonderful.