The history of the American people is,  36_________ , the history of the movement of the American people. They moved from the colonies of the East Coast to the open space of the 37_________ . They moved from the country and the farm to the city. 38 _________ , Americans have been moving from the cities to the suburbs.Pioneer Americans began 39     _________ from the East Coast to the West 250 years ago. They moved west for many reasons.      40 reason was that they could obtain 41 _________ open space and land 42_________ farming. Americans liked large open spaces. And they liked the freedom and independence to 43_________the land in their own way. Some of the land became farms. Important minerals were discovered in some areas, so some of the land became 44_________ . Other large areas became cattle ranches. There seemed to be enough land for everybody. But it was a difficult life, 45_________ of endless work and hardship.

36.