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Thomas Edison was a great American 1.________  . When he was a child, he was always   2.________  questions and trying out new ideas. No matter  3.________  hard it was, he never gave up.

Young Tom was in school for only three months. His teacher didn’t understand why he had  4.________  many strange questions. Most of them were not about his lessons. The teacher didn’t want to teach Tom any 5.________ . He asked Tom’s mother to take the boy home. Tom’s mother taught him to read and write, and she found him  6.________  a very good pupil. He learnt very fast and became very  7.________ in science.

One day , he saw a little boy   8.________ on the railway tracks at a station. A train was coming near quiclly, and the boy was too frightened to move. Edison rushed out and carried the boy to  9 .________. The boy’s father was so  10.________  that  he taught Edison to send messages by telegraph.