| A. played, B. pay, C. usually, D. hobbies, E. communicate F. earliest, G. add H. instead, I. touch, J. movies K. stamps |
You stick（粘）a stamp on an envelope. And then it travels across the world to find another person Stamps help people keep in with their friends and families. They have an important role in people's lives for a long time now. People have a special day for Oct 9is World Post Day.
Before stamps, people didn't for the letters they sent, but they paid for the letters they got. The first stamp ever made is called Penny Black. It is a British stamp, made in 1840, with a picture of Queen Victoria on it. Do you know how the back of a stamp is sticky？The stamps didn't have sticky backs. In the past, people used paste（浆糊）sometimes. But they had to pin（钉住）or sew（缝）stamps onto letters！Years ago, sending letters used to be the most important way to with other people. It seemed that everyone had stamps on hand. Although now fewer people send letters, stamp collecting is still one of the world's most popular . There are even stamp clubs to help people find new stamps to to their collections. Interestingly enough, the internet may have reduced（减少）the need for stamps, but it is actually offering new ways for collectors to find more stamps.
