【正确答案】 C

【答案解析】[听力原文]
M: I"d like to mail this package to Hong Kong. How much will it be, please?
W: Do you want to send it first class or parcel post?
M: How much is first class and how long does it take?
W: It"s a light package. (She weighs the package.) First class would cost $8.00. I guess it will take about eight to ten days to arrive.
M: And parcel post?
W: Sending it parcel post would be cheaper, but it wouldn"t arrive for about a month. The rate for parcel post is $4.9.
M: Oh, I want it to arrive earlier than that. I"ll mail it first class. Also, I"d like to insure it for $30.
W: What"s in the package? I need to know in order to complete the form.
M: A pair of glass earrings. I packed them well, so I"m sure they won"t break, but I want to insure them just in case. Are there any other forms I need to fill out because it"s going to a foreign country.
W: Yes, one more. It"s a customs declaration on which you declare what item or items are in the package or their value.
M: (He fills out the form.)Here it is.
W: Incidentally, you forgot to put a return address on this package. It"s not a post office regulation, but we strongly recommend that all mails have a legible return address.
M: OK. I"ll do it right now. I"ll also buy ten 60-cent stamps.
W: Let"s see. The package, the insurance, and the stamps. Your total bill is $18.
M: Thank you. Have a nice day.