完成对话
W: Hello! I'd like to know some information about the trains, please. M: Yes, madam. Which train? 【D1】______ W: To London. You see, I have a sister there and... M: So your question is "When's the next train to London?" 【D2】______ W: Yes, that's right. M: At half past four. That' s in about 20 minutes. W: Thank you so much. Oh!【D3】______I always want to have something to drink when I travel. M: Yes, madam. There's a buffet car on the train. W: Oh, good! 【D4】______ M: I'm not sure, madam. Eight pence, I think. W: Eight pence! Oh dear! 【D5】______ M: Yes, madam. Your train's going to leave in 15 minutes now. W: Oh! Thank you. A. Can I get something to drink on the train? B. Things are getting so expensive! C. Are you going to London to spend your holiday? D. Where are you going? E. How much does a cup of tea cost? F. Are you all right? G. Is that right?