题目内容：

 Cannon has s___1.___ a great interest in collecting flags(旗). At the young age of four, Cannon began studying flags, d___2.___ them in his coloring books and putting them up on his walls. During school, he studied flags and tried to find out all he could about them. After university, Cannon s__3.___ to be a lawyer(律师). During law school, he continued to collect flags. His classmates, friends, and family started c___ 4.___ him “the flagman”.

Cannon now has more than 200 flags in his collection. He shows many of them in his downtown law office. Once he d___5.___ country flags for an exhibition on the Olympics.

In addition to collecting flags, Cannon also w___6.___ about them. He has published (出版) three books about flags. He loves to h___7.___ from friends who see his b___8.___ in stores all over the world. A few years ago, Cannon’s hobby r___9.___ a new level. He entered a flag design contest and won. The country he lives in asked him to design its flag. Cannon explains his hobby this way , “Collecting flags is l__10.___ collecting pieces of history.”