单项选择题
[听力原文]6-7
M: Mrs. Liang, could I have a word with you, please
W: Oh, yes, Tony, of course.
M: I wondered if I could have next Friday off. My sister’s arriving from Switzerland... er... I’d like to meet her at the airport.
W: Oh, Friday’s rather difficult. What time does she arrive
M: The plane gets in at 4:00 p.m.
W: Why don’t you go off just after lunch; then you’ll manage to get to the airport on time to meet her at 4:00.
M: Oh, thank you very much, Mrs. Liang.
A．To tell her about his sister’s arrival.
B．To invite her to a party.
C．To discuss some business affairs.
D．To ask for a day’s leave.