A、Because he has enough money to buy stamps. B、Because he used to receive stamps as gifts. C、Because stamp collecting is his hob

W: Mike! Long time no see. What’s up?
M: Hey, Lydia. Fancy meeting you here. Are you keeping busy?
W: A little bit. Well, someone told me you’ve got bunches of good stamps, like a museum.
M: I do have a lot. I’m interested in stamp collecting. I guess it’s actually a part of my life.
W: They cost a lot though. How can you afford them?
M: Sometimes I do have hard time with them. I’ve to save every penny. But it’s worthy. And, when big days such as my birthday or Christmas come, most of my friends give me stamps as gifts.
W: That’s good. Stamp collecting is also a long-term investment. The price keeps going up. You can earn a lot by bringing them to the market.
M: I’m afraid not. For me, stamp collecting is merely a bobby, a personal fondness. I’d be sad if I’d ever have to sell them.
W: I can imagine. Keeping a hobby is like having a friend, both enjoyable and rewarding. You get great pleasure by attending them.
M: I couldn’t agree more.
W: By the way, have you ever been to other countries?
M: Not yet.
W: Then how do those foreign stamps come from?
M: Well, I’ve some friends studying abroad. They send me some at times.
W: I see. My friends travel a lot every year. Lf you like I could ask them to help you with that.
M: That would be too good if it’s not trouble for them.
W: Not at all.
M: Now, I’m heading for the post office. I heard a new set of stamps is for sale for the World Cup. Do you have interest to go with me?
W: I’d love to. But I’ve to meet my friend at 4 o’clock at the airport. He’s coming back for vacation. Anyway, I’ll call you later.
M: All right. Then see you soon.
W: See you.