补全对话。 A: What would you do if you had a million dollars? B: Well,I'd give it to medical research. A: __ 1 __ B: Thank you． A: What about you?__ 2 __ C: But I don't know what to wear. A: If  I were you, I'd wear a shirt and tie and I'd take a small present. C: That's great. __ 3 __ What should I do? A:  Well,  you should eat lots of fruit and vegetables and drink lots of water. C: Thank you. A: You're Welcome.  Now, let's ask D What would you do if you had a million dollars'? D: __ 4 __ A: Medicine? Why? Can you tell me? D: Of course.  I can't sleep the night before I take a big exam, then I'm too tired to do well.  So I want to buy some medicine. I think it's helpful to sleepless. A: __ 5 __ that should help you relax. D: I think it's a good idea. Thank you very much! A: That's all right. But I get nervous before big parties and then I get pimples (疙瘩) If I were you, I'd drink a lot of water. I think I would buy some medicine. Oh! You are a kind penson! I couldn't know how to spend so much money, If I were you, I'd take a long walk before going to bed.       . If I had a million dollars, I'd go to some big parties.