SECTION A CONVERSATIONS
Directions: In this section you will hear several conversations. Listen to the conversations carefully and then answer the questions that follow.
听力原文：M: Hey, Helen, how are you？
W: I'm fine, Bob. Arch't you glad the semester is over？
M: Are you going to the rock concert Friday night？
W: I haven't thought much about it. Are you？
M: Sure. Would you like to go with me？
W: Sounds like fun.
M: You'll have to buy your own ticket though.
W: Are you broke again？ Let me treat you. You know I am a waitress at the student center. Anyway now that the final exams are almost over, I'd love a night out.
M: Since you'ye been so great about buying the tickets, why don't I take us out to dinner？
W: You'ye got a deal. Let's buy the tickets now.
When does this conversation take place？

A. In the middle of the semester.
B. At the beginning of exams.
C. At the end of the school year.
D. In the middle of summer vacation.