情景交际。从A-G选项中选出能填入空白处的最佳选项，补全对话（有两项多余）。
(A man wants to buy a ticket at the station. M is for man. A is for assistant.)
A: Good morning! Can I help you, sir?
M: 1_____ Could you tell me the time of the last train to Beijing this evening?
A: There's one at 8:30. But I'm afraid all the tickets have been booked already.
M: 2_____
A: The first train leaves at 9:15.
M: 3_____
A: It arrives at 12:30. But may be a little late because of the bad weather.
M: OK! 4_____
A: Eighty yuan and half of it for a child below 12.
M: 5_____ I'd like two tickets and another one for a child at the age of ten, Here is the money.
A: Thank you!
A. How much does a ticket cost?
B. Yes, please!
C. How to get a ticket, please?
D. Can you tell me when it arrives in Beijing?
E. All right.
F. Then the time of the first one tomorrow morning?
G. You are welcome.