A、Calling on her parents. B、Teaching. C、Business and pleasure. D、Going back home. C细节题。四个选项都是表示动作的动名词短语，因此推断问题是关于一个人的活动。男士在问到女士此

M: Next. Uh, your passport, please.
W: Okay.
M: [23] Uh, what is the purpose of your visit?
W: [23] I’m here to attend a teaching convention for the first part of my trip, and then I plan on touring the capital for a few days.
M: And where will you be staying?
W: [24] I’ll be staying in a room at a hotel downtown for the entire week.
M: And uh, what do you have in your luggage?
W: [25] Uh, well, just, just my personal belongings um... clothes, a few books, and a CD player.
M: Okay. Uh, please open your bag.
W: Sure.
M: Okay... Everything’s fine.
W: Great.
M: Uh, by the way, is this your first visit to the country?
W: Well, yes and no. [23]/[24] I was born here when my parents were working in the capital many years ago, but this is my first trip back since then.
M: Well, enjoy your trip.
W: Thanks.