1. 다음 대화가 자연스러운 것은? ① A: Wake up. You'd better hurry. B: What? I am sorry for being late. ② A: What are you doing now? B: We are going to swim this afternoon. ③ A: I am getting fat. B: You'd better not eat late at night. ④ A: Would you open the door? B: Okay. No problem. My hands are dirty. ⑤ A: Can I use your raincoat? B: Sorry, I can't. I have to do my homework.