Ответ:
1) How old is Bill Gates? - 64 year
2)Who is Paul Allen? - was an American business magnate, researcher, investor, and philanthropist.
3) Is Gates married? - Yes
4) Who is Jennifer Katharine ? How old is she now ? - He is the daughter of Bill Gates . now she is 20 years old.
5)When did Bill begin writing computer programmes ? - since 1974
6)When did Microsoft become the largest computer company? - 4 april 1975
7) Why did Gates become one of the richest men in the world ? - He created one of the most profitable companies in the world.