根据对话内容，从对话后的选项中选出能填入空白处的最佳选项。选项中有两多余选项。 — What can I do for you, sir? — I bought this mobile last Saturday here in your shop. 1_____ — What's the matter with it? — 2_____ — How long does it last? — It can last only one day! Then, I'll have to recharge it. Sometimes it just turns off by itself. — It doesn't seem to matter much. 3_____ — I'd like you to return the money. — 4_____. We can repair the mobile for you. — No, I hope you can change it for a new one of the same model at least. — All right. 5_____ A. I'm sorry, but we can't. B. But it doesn't work well. C. Is there anything wrong? D. So what do you want us to do? E. The battery doesn't last long. F. We can change it for another one. G. All right, don't worry.