【正文】
uy . A. a tenfen stamp B. a new stamp C. a collected stamp D. a valuable stamp ( ) 2. 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 ( ) 3. When some of the stamps are difficult to find, . A. nobody will try to get them B. they can bee of great value C. everybody would like to buy them D. they will be worthless[ ( ) 4. 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. ( ) 5. 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 stamp