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, the 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 was accepted to (43) ____ 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 (44) ____ on coursework. He often relaxed 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. However, he later said, "I don’t think dropping out is a good idea.’ In 2007, he (45) ____ an honorary degree from Harvard. He began his speech by saying this to his father in the audience. "I have been waiting for 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 (46) ____ Microsoft. He is now, with his wife, running The Bill & Melinda Gates Foundation which aims to improve healthcare, reduce poverty, and promote (47) ____ around the world.