Экзаменационный (типовой) материал ЕГЭ / Английский / 11 задание / 48

         In the early 1800s, the area that would become the western United States was completely undeveloped.
         Explorers, hunters, traders, and settlers had to blaze their own trails. A___________________________ to move possessions and supplies became common place.
         Manifest Destiny was the belief that Americans had a God-given right to take over the continent. As they moved west, settlers used this policy B___________________________ to new people and territories.
         Trails increased trade opportunities between western and eastern regions, and the U.S. economy prospered C___________________________ on each other for goods.
         To achieve Manifest Destiny, the United States purchased land from other countries or conquered territory D___________________________ until its borders stretched from coast to coast.
         More than one-half million people chose to travel West on trails between 1800 and 1870, E ___________________________.
         As new technology spread across the West, however, the use of trails came to an end. The railroads built thousands of miles of tracks, and, F ___________________________, a cheap, relatively safe, and quick way to transport people and supplies to western areas existed.

1.  to spread U.S. ideas and government
2.  for the first time in history
3.  thus replacing them forever
4.  as territories became interdependent
5.  the use of covered wagon
6.  by taking land from Native peoples
7.  forming the largest mass migration in history