UNIT 5 . The greatest inventions

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Across
  1. 2. to be the first person to make a new type of thing
  2. 4. a good idea that you think quickly
  3. 7. verb to draw your idea for how something will be made
Down
  1. 1. to be the first persn to find a place or thing
  2. 3. a scientific test to see how something works
  3. 5. verb to make something by putting pieces together
  4. 6. noun a simple tool or piece of equipment to do a job