单项选择题
M: Hello, this is Jonason speaking.
W: Hello, Jonason, I am Kasy. I am sorry to tell you that I may not attend your birthday party this weekend.
M: Oh, what’s up
W: Nothing much... but...
M: What’s happened then
W: I have an important exam at that time.
M: If so, I think we can hold the party ahead of time. What do you think about it
W: Yeah, It is a good idea. I can’t agree more.
M: Great and I wish you success.
W: Thank you, happy birthday to you.
A. She has a quiz at that time.
C. She has an important exam at that time.
B. She has to do her homework.
D. She has an important meeting at that time.