During World War II, the government _(took over/ signed contracts with/ closed down many) private American industries to help the war effort. US automobile manufacturers _(stopped building cars/ built more cars/ shut down their factories) during the war at the government's request.

Wartime production was boosted by _(government owned companies/ private businesses/ the government and private businesses working together).

During the war, people's working hours _ (increased/ decreased/ stayed the same).

a, both were musicians during the jazz age

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in the 1800s, locomotives powered by steam made transportation faster and cheaper. the resulting rapid growth of railroads led to the connection of the atlantic and pacific railroad in oklahoma city in 1897.

in the last years of the century, the improvement of steam-based engines the expansion and growth of railroads. this growth increased when the companies started to build and expand, such as the atlantic and pacific railroad, which connected new mexico with california, and missouri with oklahoma. many of these new networks were built in oklahoma, and these changes transportation henceforward.