听一段对话，回答第1-3 题。 1. How many tests should the boy take before the big exam? A. 1 B. 2 C. 3 D. 4 2. Why does the boy feel worried? A. Because he can do nothing with the exam. B. Because he doesn’t know how to prepare for the tests. C. Because he is worrying about the big exam. D. Because he isn’t good at taking tests. 3. What will the boy do to relax (放松）himself? A. Try to do many things. B. Go on a trip. C. Make himself busy. D. Listen to light music.