从方框中选择适当的句子补全对话。 A. What do I have to do? B. Then you could take out the trash. C. Sure, you can. D. Thank you. E. I'm going to be very tired that day. A: Hey, mum. Could I go out to see the dolphin show this Sunday, please? B: 1 But you have to do some chores first. A: 2 B: Well, first you could clean your room. A: OK. Then what? B: 3 A: Yeah. I can do that. B: And you need to feed your dog. A: Wow! 4 B: I'll help you. A: 5 Mum! 1._____2._____ 3._____ 4._____ 5._____