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．At five a.m.
B．At four p.m.
C．At four a.m.
D．At five p.m.