Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.

Bill Gates is the co-founder of Microsoft, ___(1)___ world’s largest PC software company. He is among the richest people in the world. Bill Gates’ interest in computers started when he was a teenager. After high school, he ___(2)___ to several top colleges in the USA: Harvard, Yale, and Princeton. He chose to go to Harvard to study law. At Harvard, he focused more on his interest in computers than on coursework. He often ___(3)___ by playing video games in Harvard’s computer lab. He left Harvard before graduating because he wanted to open a software company with his friend Paul Allen. ___(4)___ he later said T don’t think dropping out is a good idea.’ In 2007, he received an honorary degree from Harvard. He began his speech by saying this to his father in the audience. ‘I’ve been waiting more than 30 years to say this: Dad, I always told you I’d come back and get my degree.’ Bill Gates is no longer working full time for Microsoft. He is now, with his wife, running The Bill & Melinda Gates Foundation which aims to ___(5)___ healthcare, reduce poverty, and promote education around the world.