问题补充：
Cannon has s【小题1】 a great interest in collecting flags(旗). At the young age of four, Cannon began studying flags, d【小题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【小题3】 to be a lawyer(律师). During law school, he continued to collect flags. His classmates, friends, and family started c 【小题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【小题5】 country flags for an exhibition on the Olympics.
In addition to collecting flags, Cannon also w【小题6】 about them. He has published (出版) three books about flags. He loves to h【小题7】 from friends who see his b【小题8】 in stores all over the world. A few years ago, Cannon’s hobby r【小题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【小题10】 collecting pieces of history.”shown
答案：
(答案→)shown
解析：Cannon从小就喜欢收集旗子，长大后虽然成为了一名律师，但是他的爱好依然是收集旗子，他甚至被人称为“旗人”。他不但收集旗子，还出版了三本关于旗子的书，并且很喜欢收到来自世界各地的读他的书的读者来信。他认为收集旗子就像收集一条条历史。
【小题1】考查动词过去分词。句意：Cannon已经显示出对收集旗子的极大兴趣。根据a great interest in collecting flags在收集旗子方面的极大兴趣，可知单词为show，根据have可知时态为现在完成时，故答案填shown 。
【小题2】考查动词动名词。句意：Cannon四岁的时候，就开始研究旗子、在彩色书上画旗子并挂在墙上。根据 in his coloring books在彩色书上 ，对于一个四岁的孩子来说，做能挂在墙上的并在彩色书上做的当然是画画了，此处动词与studying同为began的并列宾语，可知答案填drawing。
【小题3】考查动词过去式。句意：大学毕业后，Cannon学习成为了一名律师。根据with its south gate facing Great Rainbow Bridge Road其南门正对着大彩虹桥路，可知答案填studied。
【小题4】考查动词现在分词。句意：他的同事、家人、朋友开始称他“旗人”。根据him “the flagman”他旗人，start doing sth,开始做某事，可知答案填calling 。
【小题5】考查动词过去分词。句意：一次他为一个奥运会的展会捐献了国旗。根据 for an exhibition on the Olympics 为在奥运会上的一个展会，可知答案填donated 。
【小题6】考查动词第三人称单数。句意：除了收集旗子，他也写关于旗子的事情。根据He has published three books about flags.他已经出版了三本有关旗子的书，可知答案填writes 。
【小题7】考查动词不定式。句意他喜欢收到来自世界各地的读他的书的读者来信。Here from收到来信，可知答案填hear 。
【小题8】考查名词。句意：见上题。根据He has published three books about flags.他已经出版了三本有关旗子的书，可知答案填books 。
【小题9】考查动词过去式。句意：几年前，Cannon的爱好达到了一个新水平。根据a new level.新水平，可知答案填 reached。
【小题10】考查介词。句意：收集旗子就像收集一条条历史。把收集旗子比成收集历史，可知答案填like。
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