问题补充：
Bill Gates was born on October 28, 1955. He grew up in Seattle, Washington in the US. He was a very clever boy. His favorite subjects at school were science and math. When he was 13, he started to play with computers. At that time, computers were large machines（机器）. Once he was very interested in a very old computer. He and some of his friends spent lots of time doing unusual things with it. In the end, they worked out a software program（软件程序） with the old machine. Bill sold it for $4,200 when he was only 17.
In 1973, Bill went to Harvard University(哈佛大学). In his third school year, he left Harvard to work for a company called Microsoft（微软）. Bill began his company（公司） in 1975 with his friend Paul Allen. They thought the computer would come into every office and every home soon. So they began developing(发展) the software for personal computers. They improved(改进) the software to make it easier for people to use computers.
【小题1】Bill Gates grew up in .A．CanadaB．AustraliaC．AmericaD．Germany【小题2】What subjects did Bill like best at school?A．Science and math B．Languages and art C．Math and languagesD．Music and P.E【小题3】Bill’s company worked hard at .A．making large machinesB．playing computer gamesC．mending old machinesD．developing software【小题4】Bill started to play with computers . A．in 1955B．in 1968C．in 1973D．in 1975【小题5】The underlined word “personal” means .A．个人的B．公众的C．大型的D．昂贵的C
答案：
(答案→)C
解析： 略
