听对话,回答问题。 1. What does John want to be when he grows up? [ ] A. He wants to be a teacher. B. He wants to be a football player. C. He wants to be an astronaut. 2. Why does John think so? [ ] A. Fly to space. B. Watch the earth. C. Like the space. 3. What would John like to do if he wants to be stronger? [ ] A. He'd like to have more healthy food. B. He'd like to play football every day. C. He'd like to do morning exercise.