听一段对话,回答第1-3题。 1. How far is Nancy’s home from her school? A. About four li. B. Three li. C. About six li. 2. Does Nancy often walk to school? A. Yes, she does. B. No, she doesn’t. C. I don’t know. 3. How does John go to school if it rains or snows? A. He will take the school bus. B. He will walk to school. C. He will go to school by bike.