1. Lewis Lattimer helped develop _____.

a. the elevator
b. many inventions
c. monopoly
d. the computer

2. What material was important to builders of railroads, bridges, and skyscrapers?

a. marble
b. coal
c. steel
d. glass

3. What was the main reason Americans were against monopolies?

a. prices might be too high
b. prices would be low
c. companies could compete
d. workers would not be hired

4. What invention proved that the United States was the world's most modern country?

a. telephone
b. phonograph
c. steam engine
d. electric light

5. Who founded the American Federation of Labor?

a. Andrew Carnegie
b. John D. Rockefeller
c. Samuel Gompers
d. Lewis Lattimer