听力原文：M: Hello. I want to buy some stamps, and I want to send something special to Australia. Can I mail it here？
W: Yes, you can. How many stamps would you like？
A: I'd like ten sixty-cent stamps and five airmail stamps, please.
B: Here you arc. Ten sixty-cent stamps and five airmail stamps.
A: I'd like to mail this package to Australia, how much will it be, please？
B: Airmail or surface mall？
A: Airmail, please. How long does it take？
B: It's a light package airmail would cost US ＄22 since it's going to Australia I would guess it will take about six or seven days to arrive.
A: And the surface mall？
B: Sea mall would be cheaper, but it wouldn't arrive until about 5 weeks later. The rate for that is US $4.5. What's in the package？ I need to know that in order to complete this form.
A: A pair of jade earrings, a gold necklace and some fashion dress for my sister who's going to get married. I packed them well, so I'm sure they won't break, but I want to insure them just in case. By the way, how much would an emergent letter to Japan be？ B: Let me check for you. A special delivery to Japan would be US ＄49. They can guarantee delivery tomorrow, is there anything else？ A: I'd like to have thirty dollars worth of stamps. I'd miller you pick out some nice commemoratives.
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A. Because she is going to study abroad.
Because she is going to get married.
C. Because she asked him for it.
D. Because Christmas is coming.