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 {#blank#}1{#/blank#} (invent).When he was{#blank#}2{#/blank#}child, he was always asking questions
and trying out new ideas. No matter{#blank#}3{#/blank#} hard it was, he never gave up.
Young Tom was in school for only three {#blank#}4{#/blank#} (month). His teacher didn't understand
why he had so many strange questions. Most of {#blank#}5{#/blank#}(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 {#blank#}6{#/blank#} (read) and write, and she found him a
very good student. He learnt very fast and became very {#blank#}7{#/blank#}(interest) in science.
One day, he saw a little boy {#blank#}8{#/blank#}(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 {#blank#}9{#/blank#} (safe). The boy's father was so
thankful that he taught Edison to send messages {#blank#}10{#/blank#}telegraph (电报).
