根据所听内容选择正确答案。 (     ) 1. A. She goes there on foot. B. He goes there on foot. C. He goes there late. (     ) 2. A. It's very cheap. B. It isn't expensive. C. It costs 10 yuan. (     ) 3. A. Yes, you can. B. Yes, I can. C. I want a pair of shoes. (     ) 4. A. I'm looking for my keys. B. I'm watching TV. C. I'm looking at the blackboard. (     ) 5. A. Yes, they are. B. They are in the classroom. C. They aren't in the classroom.