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 a tiring evening! — Oh, it's good to sit down after all that standing. — 1 — I don't think I've ever felt so tired in my life. 2____ — And the heat. _3______ — We shouldn't have accepted the invitation in the first place. — ____4 We've only been to a party. — You're right. We must be getting old. — Come on. ___5 We'd feel better. A．I'm not that tired. B．Let's have some coffee. C．What 's more, I didn't sleep well last night. D．But we shouldn't have felt so tried. E．A good night's sleep will put you right again. F．I could just sit here for ever and ever, and never get up. G．All that silly talk, and the drink and the cigarette smoke