听下面五段对话,选择最佳答案。 1. What is the boy's favorite subject? A. P.E. B. Science. C. Music. 2. Why does the girl like music? A. It is interesting.B. It is not difficult.C. The teacher is interesting. 3. How many tennis rackets does the boy have? A. Three. B. Four. C. Six. 4. What does the boy think is healthy? A. Vegetables. B. Fruit. C. Hamburgers 5. What does the woman want to buy? A. The green T-shirt. B. The black T-shirt. C. The blue T-shirt