题目内容：

阅读下面短文，按照句子结构的语法性和上下文连贯的要求 ，在空格处填入一个适当的词或使用括号中词语的正确形式填空，并将答案转填到标号为1-10的相应位置上。

In the United States, there were 222 people ________（report） to be billionaires（亿万富翁） in 2003．The _______（rich） of these is Bill Gates, worth at least $ 41 billion, _______made his money ________ starting the company Microsoft．Mr．Gates was only 21 years old _____he first helped to set up the company in 1976．He was a billionaire by the time he was 31 years old．________, there are still some other people who have made lots_______ money at even younger ages．Other young people who have struck it rich include Jackie Coogan and Shirley Temple．________ of these child actors made over a million dollars _______ （act） in movies before they were 14．But ______ youngest billionaire is Albert von Thurn und Taxis of Germany, who, in 2001, inherited （继承） a billion dollars when he turned 18!