Дан текст. Нужно выбрать из данного текста 10 предложений и переделать их в Past Simple.

Personal computers, or PCs, are an important part of our everyday lives. Many people cannot imagine life without them. One of the most important people in making these machines work is Bill Gates. Bill Gates was born in 1955 in Washington State. He grew up in a rich family. His parents sent him to a private school. There he met his business partner, Paul Allen. When they were in eighth grade, they were writing programs for business computers and making more.
In 1973, Gates was accepted at Harvard University. His parents were happy. They thought he would get over his obsession with computers and become a lawyer like his father. Two years later, Gates dropped out of Harvard to work on a computer program with his friend Allen. They worked eighteen hours a day in a dormitory room at Harvard. They were writing the program that would run one of the first personal computers. In 1975, they created a company called Microsoft to sell their product.
Allen became ill with cancer and left Microsoft in 1983. He recovered a few years later and started his own company. Meanwhile, Microsoft became a giant company. By 1990, at the age of thirty-four, Gates was the youngest billionaire in the history of the United States. He was the "King of Software". He achieved his success with a lot of hard work. For more than ten years, he worked sixteen-hour days, seven days a week. He had a dream and the will to succeed. By 1997, he was the richest man in the United States.

спасибо

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Только первых 3 предложения стоят в Present Simple.Все остальные предложения уже стоят в Past Simple.Вы что-то не поняли с заданием.