4 Written questions
3 Multiple choice questions
- The stone was not cheap and this ________ of building used a large amount of cut stone.
- Otis's invention could be used to ________ people safely to the upper floors of very tall buildings.
- Elisha Otis invented a ________ that kept the cages from crashing to the ground.
3 True/False questions
cable → His invention kept accidents from happening if a rope or wire ________ broke.
rods → These fitted into slots running the length of the elevator ______, keeping the cage from falling any further.
landmark → Manhatten's first skyscraper, the twenty-two-story Flatiron Building is still a New York _________.