听下面5段对话，每段对话后有一个小题，从题中所给的A, B, C 3个选项中选出符合对话内容 的最佳选项。 1. What's wrong with Tony? A. He's hungry. B. He has a cold. C. He's stressed out. 2. Which is David's bike? A. The heavier one. B. The older one. C. The lighter and newer one. 3. How many teaspoons of sugar does Bob need? A. One. B. Two. C. None. 4. How was Liu Fang's vacation? A. It was great. B. It was OK. C. It was boring. 5. What is Ted going to do on Sunday evening? A. He's going to Cathy's birthday party. B. He's going to babysit his sister. C. He's going to the movie with Cathy.