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4 Written questions

3 Multiple choice questions

  1. A set of steel girders fastened together and supported the _________ of the tall buildings.
  2. Otis's invention could be used to ________ people safely to the upper floors of very tall buildings.
  3. The main purpose of steam powered elevators was to move ________ from one factory floor to another.

3 True/False questions

  1. cathedralsThe stone was not cheap and this ________ of building used a large amount of cut stone.

          

  2. landmarkManhatten's first skyscraper, the twenty-two-story Flatiron Building is still a New York _________.

          

  3. methodElisha Otis invented a ________ that kept the cages from crashing to the ground.

          

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