阅读理解。 Bill Gates was born in 1955. He grew up in Seattle, Washington. When he was young, he was good at science and maths. And he wanted to be a scientist. Bill started to play with computers when he was 13. At that time, computers were very large machines. Once he was interested in a very old computer. He and some of his friends spent lots of time doing unusual (不寻常的) things with it. In the end, they worked out a software ( 软件) program with the old machine. Bill sold it for 4200 dollars when he was only 17. In 1973, Bill went to Harvard University (哈佛大学). He developed the Basic language for the first microcomputer (微型电子计算机). In his third year, he left Harvard. Bill began his company in 1975 with his friend Paul Allen. They thought that the computer would be a very important tool in every office and in every home, so they began developing software for personal computers. They developed the software to make it easier for people to use computers. In 1999, Bill wrote a book. In the book, he told people how computer technology could solve business problems in new ways. It was one of the best-sellers on The New York Times' list. Bill Gates has many hobbies. He enjoyed reading very much. He also enjoys playing golf and bridge. 1. When did Bill begin to play with computer? A. In 1965. B. In 1966. C. In 1968. D. In 1972. 2. How old was Bill when he went to Harvard University? A. 17 year sold B. 18 year sold C. 19 year sold D. 20 year sold 3. Bill left Harvard University when he was a _____. A. first-year student B. second-year student C. third-year student D. fourth-year student 4. Bill wrote a book about _____. A. how to do unusual things B. how to play computer games. C. how to work out a software program D. how to solve business problems with the help of computer in new ways 5. We can learn from the text that _____. A. Bill worked for Microsoft before he went to Harvard University B. Bill sold his first software program for 420 dollars C. Bill began his company in 1976 with his friend D. reading is one of Bill's hobbies