A、They traveled around there. B、They taught English there. C、They did geological research there. D、They served as volunteer work

W: Are you going to find a job again this summer?
M: Yes, of course. Otherwise, how am I going to pay for the tuition fees in the fall?
W: I am thinking of working too, but my folks insist I have to spend some time with them during the summer. You know’, I haven’t seen them for two years.
M: That’s considering you are only an eight-hour drive away from your hometown. Why haven’t you been home for so long?
W: It’s not that I didn’t want to go home but because my parents were volunteering in the charitable organization in Central America for the last couple of years.
M: In that case, maybe you should visit them in the summer.
W: That’s true, but I didn’t want to spend the whole summer staying at home. I want to make some money and pay off my tuition fees too.
M: Well, you can get a loan.
W: Loan? I hate the idea of borrowing. I would rather make my own money and pay it off.
M: That’s true. It’s not uncommon for people to have high bills to pay once they’ve graduated.
W: Yes, that’s exactly what I didn’t want to get myself into.
M: Well, you can work part-time when you are at home.
W: I was thinking about that but my parents thought I should be at home with them full-time.
M: Well, I think you do have to make a decision.