Part 1 Short dialogs and multiple choice questions(每小题：2 分)Directions: Listen to the short dialogs, then choose the correct answers to the questions. You will hear the recording twice. After the first playing, there will be time for you to choose the correct answers. Use the second playing to check your answers.1.A. It is the biggest problem.B. It is the second most important problem.C. It is important but not the most urgent problem.D. It is not important.
