阅读理解A stamp is just a piece of paper with a picture and some

阅读理解
A stamp is just a piece of paper with a picture and some words printed on one side and some glue on the other side.What makes one of these bits of paper worth any money at all?What makes a ten-fen stamp worth ten fen?
When you buy a stamp,you also buy service from the post office.You get the letter sent by post.After the stamp has done its job,the post office says it is worthless.You must buy a new one for each letter you send.
But people often pay money for stamps that have already been used.Stamp collectors,or philatelists（集邮家）,have fun just trying to collect as many different kinds as possible.Certain kinds are hard to find.To get one of these uncommon stamps,some collectors are willing to pay a great deal of money.They think it is worth while and that gives it value.If you collect stamps because they are especially beautiful or tell an interesting story,or show all kinds of animals,then those are the ones that have value to you.
61.When you are going to post a letter,you must buy ___________.
A.a ten-fen stamp B.a new stamp
C.a collected stamp D.a valuable stamp
62.The post office says a stamp is useless if ____________.
A.it is collected B.you get a letter sent by post
C.it is old D.it has a postmark on it
63.When some of the stamps are difficult to find,___________.
A.nobody will try to get them B.they can become of great value
C.everybody would like to buy them D.they will be worthless
64.Which of the following is NOT true?
A.The stamp has a picture and some words on it.
B.Many used stamps are worth a lot of money.
C.Stamp collectors try to get different kinds of stamps whether they are used or not.
D.A used stamp can be used again to post a letter.
65.Which of the following is true?
A.A new twenty-fen stamp is not worth twenty fen.
B.One can have a letter sent by a used stamp.
C.Sometimes people are willing to pay much money for a stamp.
D.A post office worker does not want to buy any used stamps.