单项选择题


Section A
Directions:In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the conversation and the questions will be spoken only once. After each question there will be a pause. During the pause, you must read the four choices marked A) ,B) ,C) and D), and decide which is the best answer.

A.Tell his professor about the condition of the lecture hall.
B.Organize a team of students to clean the lecture hall.
C.Find out who has been making a mess.
D.Wait to see if the problem will be solved.