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Archeological studies have provided evidence that the use of plants decoration as well as for food developed early in the history

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Every scientist knows that gravity is the force that maintains the earth and the planets than orbits around the Sun.

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The government’s budget maybe considered balanced when the amount of money it spends does not exceed the amount receives

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Unlike wood, paper, and fabric which tendency to disintegrate after being demolished for many years, ceramics and glassware although easily broken, survive well in the ground.

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A smile can be observed, described, and reliably identify; it can also be elicited, manipulated under experimental conditions.

The milk went ______because Tim forgot to put it back in the fridge.

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Electric lamps came into widespread use during early 1900’s and have replaced other type of fat gas, oil lamps for almost every purpose.

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Students in the United States often support themselves by babysit, working restaurants, or they drive taxi cabs

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……….. is the state of not knowing how to read or write.

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I’ll make some sandwiches before I’ll leave at office in the morning

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I was such nervous than I didn’t think I would pass the exam

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Floyd Bennett was a pilot for two of the Arctic expedition of the 1920’s and the first pilot to fly over the North Pole.

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Lightning rods are used for to direct intense electrical bursts into the ground instead of buildings and people.

The_________of life forms on the earth makes zoology an interesting area of study.

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…………. is work that involves studying something and trying to discover facts about it.

I had passed the exam with the flying colors ___ studying constantly. 

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After the team of geologists had drawn diagrams in their notebooks and wrote explanations of formations which they had observed, they turned their camp-side to compare notes.

Choose the correct answer to complete the sentence. " I want us to be connected even _____ you are in the London"

Before the Industrial Revolution come to America, the vast majority of nation's population had lived in rural areas

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So when Whitman returned to Pacific, over thousand settlers went with him

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Because fly is a parasite of harmful insects, much species have been imported into the United States to combat insect pests.