单项选择题
W: Good afternoon, Uncle Smith.
M: Good afternoon, Cathy.
W: There will be a dinner party for my birthday. Would you come
M: I’d love to. When
W: Next Saturday.
M: I’m afraid I’m busy then. I have to meet a foreign friend at the airport.
W: That’s OK. What about Sunday
M: That will be all right.
W: That’s great. You can come at around 7:00 and we can chat for a while before the party starts.
A．Because she had some questions to ask him.
B．Because she had no other friends.
C．Because she wanted to have a birthday party.