C. Reading comprehension. After reading a passage, choose the best answer to each question. When I was at university I studied very hard. But a lot of my friends did very little work. Jackson was one of them. He spent more time drinking in the students'union, than working in the library. Once, at the end of term, we had to take an important test in chemistry. The test had a hundred questions. We just had to write" True or false'. While I was studying in my room the night before the test, Jackson was watching television. Jackson usually worried a lot the night before a test. But on that night he looked perfectly calm. Then he told me of his plan It's very simple. There are a hundred questions and I have to get fifty correct to pass the test. I will take a coin into the examination room. I haven't studied a chemistry book for months, so I will just toss the coin. That way, I'm sure I will get half the questions right. The next day, Jackson came cheerfully into the examination room. He sat tossing a coin for half an hour as he marked down his answers. Then he left, half an hour before the rest of us. The next day , he saw the chemistry professor in the corridor. “ Oh good ,” He said. “ have you got the results of the test? What mark did I get?” The professor looked at him and smiled Ah, it's you Jackson. Just a minute. Then he reached into his packet and took out a coin. He threw it into the air , caught it in his hand and looked at it. “ I'm terribly sorry , Jackson. ” He said. " you failed. ”