巩固强化二十三篇
语法填空（每篇共10小题；每小题1.5分，满分15分）
仔细阅读下面的短文，短文中有10个空格。请根据上下文填入适当的词语，
或使用括号中的词语的适当形式完成语法填空，并将答案填写在相应的位置上。
In the United States, there were 222 people __1.______ (report) to be billionaires(亿万富翁) in 2003.  The __2._______ (wealth) of these is Bill Gates, worth at least $ 41 billion, who made his money __3.______ starting the company Microsoft. Mr. Gates was only 21 years old __4._______ he first helped to set up the company in 1976. He was a billionaire __5.______ the time he was 31.
__6._________, there are still some other people who have made lots of money at even __7.__________ (young) ages. Other young people who have struck it rich include Jackie Coogan and Shirley Temple. __8._________ of these child actors made over a million dollars __9.____________ (act) in movies before they were 14. But __10.__________ youngest billionaire is Albert von Thurn und Taxis of Germany, who, in 2001, inherited (继承) a billion dollars when he turned 18 !