A professor（教授）told his students        into the city slums (贫民窟) to study the life of 200 boys. He asked them to       reports about each boy’s life and future. One of the students wrote,“They don’t have any       .”
Twenty-five years      , another professor read about the earlier study. He told his students to       what had happened           the boys. They tried very hard and found that 176 of the boys had become successful       doctors, teachers and scientists.
The professor was very       and decided      it further. Luckily, all of them were living near the place and he was able to ask each one,“What made you      ?”Each one answered,“It was a teacher.”
The teacher was          living there, so the professor found           and asked the old woman     she had done to pull those boys out of the slums, and change them       successful people.
The teacher’s       began to shine and said with a sweet smile,“It’s really very easy. I love those boys.”

A．go B．to go C．going D．went

A．read B．study C．write D．take

A．hope B．idea C．thought D．thing

A．later B．after C．ago D．before

A．search B．find out C．look after D．see

A．to B．with C．on D．in

A．for B．with C．as D．like

A．glad B．angry C．surprised D．worried

A．study B．studying C．to study D．studies

A．wonderfu B．successful C．rich D．popular

A．already B．too C．even D．still

A．she B．her C．he D．him

A．what B．who C．which D．when

A．on B．of C．from D．into

A．face B．eyes C．hair D．mouth