presentcostdeadapproximatelynamescarcelybarelyeditorgeneratesurvivorAs the number of people on earth increases, it becomes more difficult for the populationto ____ on the resources of the land.
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presentcostdeadapproximatelynamescarcelybarelyeditorgeneratesurvivorViewing and _____ documents on a computer screen can be much quicker than working on paper.
presentcostdeadapproximatelynamescarcelybarelyeditorgeneratesurvivorThere are three colors in the British flag, ______ red, white and blue.
presentcostdeadapproximatelynamescarcelybarelyeditorgeneratesurvivorIn this country, wood was ___________, so most houses were built of dried mud, with a roof supported by tree trunks.
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A. 20%
B. 40%
C. 60%
D. 80%
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