Fill in the Blanks ListeningOnline version Complete the sentences with the correct type of transportation. by Viviana Masaquiza 1 1 . French artists imagined firefighters with . 2 . Popular Mechanics thought we would have personal in our garages . 3 . In the 1930s , people thought would be a major form of transportation . 4 . Supersonic didn't succeed because they were too loud and expensive . 5 . H . G . Wells said that we would never have . 6 . A well - known businessman said were just a fad .