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invent/discovered

(1)Edison ________ many things all through his life.

(2)Long long ago, people ________ the telescope.

(3)I ________ my pen at last.

(4)She ________ that secret thing.

(5)I ________ that it was he who the electricity.

答案:
解析:

  (1)invented

  (2)invented

  (3)discovered

  (4)discovered

  (5)discovered; invented


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