单项选择题 W: Jerry, last night we held a discussion in that small room numbered 405 on the third floor and you were so conspicuous by your absence.M: Well, I made a mistake about the room number and staved in room 415 for an hour waitingQ: What can we learn about Jerry?（）

单项选择题 听力原文：M: I'm going to drop my information science class. It needs too early in the morning.W: Is that really the good reason to drop the class Tiny?Q: What does the woman mean?(18)A．Tony should continue taking the course.B．She approves of Tony's decision.C．Tony can choose another science course.D．She can't meet Tony so early in the morning.

单项选择题 听力原文：W: Professor, a few of us at the hack didn't get your copy of reading assignment.M: Well, there're only 38 names on my clam list. And I didn't bring any spare copies.Q: What do we learn from the conversation?(19)A．Some students at the back cannot hear the professor.B．The professor has changed his reading assignment.C．Some of the students are not on the professor's list.D．The professor has brought extra copies of his assignment.