二、It is very difficult to imagine what modem communications would be like without the post- al service. Once you go abroad， post office will be the necessary place you should go to, and the most common form of modem communication is still the letter. We write letters both for business and keeping in touch with friends and relatives. After we have written the letter, we have to mail It and for that we need stamps. Selling stamps and delivering letters are some of the major tasks of post office.
In addition to mailing letters and selling stamps, the post office also accepts and delivers packages, handles money and so on.
三、A:I wont to mail a leffer to Iroq. I seldom use international mail. Almost all my mail is do- mestic. But rve often heard of aerograms. Can you tell me what they are, please？
B:An aerogram is a sheet of paper to write a letter on. Then it folds into an envelope thats already stamped. You can use it to write to someone overseas. I1"s less expensive and more convenient than an ordinary airmail letter.
A:I dont want that. id like to send my letter by airmail.
B: Reg stered ？
A:Yes. What will It cost？
B: It weighs twenty grams. The ordinary postage is two yuan. The airmail surtax is fifty fen per ten grams. One yuan for twenh/ grams. The registration fee is one yuan per article. Four yuan altogether.
A:Thank you.
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