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　　A professor(教授)told his students to go into the city slums(贫民窟)to study the lives of 200 boys．He asked them to 　　1　　 reports about each boy’s life and future．Each of the students wrote, “He doesn’t have any hope．”

　　Twenty-five years 　　2　　, another professor read about the earlier study．He told his students to 　　3　　 what had happened to the boys．They tried very hard and found that 176 of the boys had became successful 　　4　　 doctors, teachers and scientists．

　　The professor was very 　　5　　 wanted to know why．Luckily, all the men were living near the place and he was able to ask each one, “What made you 　　6　　?”Each one answered, “There was a teacher．”

　　The teacher was 　　7　　 living there, so the professor found her and asked the old woman 　　8　　 she had used to pull those boys 　　9　　 the slum, and change them into successful people．

　　The teacher’s 　　10　　 began to shine and said with a sweet smile, “It’s really very easy．I love those boys．”

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