补全对话，从方框中所给的选项中选择正确的选项补全对话。 A. What does he do? B. Do you come from the U.S.A? C. Where does he live now? D. What does he say in the letter? E. Could you tell me your name? A: Excuse me, 1.___________________________________ B: Sure. My name is John. A: 2.______________________________ B: Yes, I do. Look, this is a letter from my pen pal. A: 3._______________________________ B: He is a cook. A: 4.________________________________ B: He lives in Canada. A: 5.________________________________ B: In the letter, he says he wants to visit me next month.