1. (2021八下·哈尔滨开学考) 从A-G选项中选出能填入空白处的最佳选项补全对话。（选项中有两项是多余的）

A. When will it start? B. You can book it on our website. C. Do you still have tickets for the piano concert tonight? D. Enjoy yourself. E. Where can I get the ticket? F. Thank you for your help. G. It's wonderful.

A: Hello, this is Renmin Opera House. What can I do for you?

B: Oh, hi.

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

B: That's great!

A: At 7: 30 p. m.

B: How long will it last?

A: It will last about two hours.

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

A: Yes.

B: Well, but how can I do it?

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

B: Sounds easy.  

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

B:    

A: You're welcome.