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　　When I was at university, I studied very hard．But a lot of my friends did 　　1　　．Some of them did just enough to 　　2　　．Others didn't do quite enough．Fred Baines was one of them．He spent more time drinking in the students' Café than working 　　3　　．

　　Once at the end of the term, we had to take an important exam in chemistry, which had 　　4　　 questions．Beside each question we had to write“Right”or“Wrong”．While I was studying in my room the night before the exam, Fred was watching TV．He usually 　　5　　 the night before an exam, but on the night he looked very relaxed．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 exam．I'll take 　　6　　 into the classroom．I haven't studied a 　　7　　 book for months, so I'll just toss the coin．I'm sure I'll get half the questions right in this way．”

　　The next day, Fred came happily into the classroom．He sat tossing a coin for half an hour when he wrote down his answers．　　8　　 he left, half an hour before us．

　　Two days later, he saw the chemistry teacher in his office．He asked,“Have you got the 　　9　　 of the exam? What score did I get?”

　　The teacher looked at him and smiled,“Ah, it's you, Fred．Just a minute．”He reached into his pocket and took out a coin, threw it into the air, caught it in his hand and looked at it．

　　“I'm terrible sorry, Fred,”he said,“You 　　10　　．”

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