Edison was a inventor who made great contributions to _____ being.填空

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• Edison is a well-known American inventor. 完形填空悬赏高分,急!Edison is a well-known American inventor. He was taught by his mother when he was a child. Later he learned things (1) _ himself by reading and experimenting. He built a lab for himself to work in, and he worked very hard in his sixty years of scientific activities. He made over a thousand inventions. (2) _ inventors in the world could have such great success. Edison’s first invention was
• Edison was a inventor who made great contributions to _____ being.填空
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