正确答案：
D
解析：
细节题。录音结尾提到隔夜邮递服务仅限美国境内，而男士想要邮寄到南美，因此不能使用这项服务。故选D。
【录音原文】
M: Give me a pack of first-class stamps, please.
W: Here you are. That will be five dollars. Anything rise?
M: Yes, I want some postcards and some foreign airmail stamps. I want to send letters to South America.
W: Just a moment, I’ll look up the rate for airmail letters to South America.
M: Can you tell me how much it will cost to send a package to Colombia? Also, I want to know how long it will take.
W: Do you have the package with you? I would have to weigh it to see how much it would cost. There are several ways to send packages to foreign countries. The fastest way costs the most, of course. I’ll give you an example. If you had a two-pound package and you wanted to send it the fastest way, it would cost about six dollars, and it would take about a week to get there.
M: Do you insure packages?
W: Yes. All you have to do is declare the value. Of the package and decide how much you want to insure it for. The rates are reasonable.
M: Is there a way I can be sure that the people in South America receive my package?
W: The post office rarely loses a package. You can, however, request a return receipt. With a return, when the delivery person gives your friend the package, your friend has to sign for it. Then we will notify you that he or she has it.
M: What about these overnight delivery services I see advertised on television?
W: They’re usually as good as the post office, but they may cost more. Also, remember that they only have service within the United States.
M: Thank you, you helped me a lot.
Questions 1 to 3 are based on the conversation you have just heard.
1. According to the woman, for how long will the man’s package get to Colombia by the fastest way?
2. How can the man know that his friend has received the package?
3. Will the man send the package using the overnight delivery services and why?
