题目内容：

阅读下面短文，在空白处填入一个适当的词，或填入括号内所给单词的正确形式（每空最多不超过3个单词）。

Thomas Edison was a great American 1. (invent).When he was2.child, he was always asking questions and trying out new ideas. No matter3. hard it was, he never gave up.

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

One day, he saw a little boy 8.(play) on the railway tracks (铁轨) at a station. A train was coming near quickly, and the boy was too frightened (恐惧) to move. Edison rushed out and took him away 9. (safe). The boy’s father was so thankful that he taught Edison to send messages10.telegraph (电报).