Section A Directions: This section is to test your ability to understand short dialogues. There are 5 recorded dialogues in it. After each dialogue, there is a recorded question. The dialogues and the questions will be spoken only once. When you hear a question, you should decide on the correct answer from the 4 choices A , B, C, and D. 听力原文：W: Why did Jack fail in the exam? M: If he had studied hard, he would have passed the exam. Q: What does the man mean? (1)