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Each chemical element is characterized to number of protons that an atom of element contains, called its atomic number.

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The wood of rosewood tree is used to do time musical instruments.

Mary wishes her mother…………here now

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While her husband was in the army, Janet________ to him twice a week.

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Since fireworks are dangerous, many countries have laws preventing the business to sell them.

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Jobs that are highly paid in some countries are badly paid in other.

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Composer John Cage, used many unusual objects as instrument in his music, including cowbells, flower pots, tin cans,finallu saw blades.

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Science and technology are part of the knowledges

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____ he was waiting for Sam outside the cinema, Jim realized that the street was funnily crowded.

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The Gray Wolf, a species reintroduced in their native habitat Yellowstone National, has begun to breed there.

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When you come to each town, however small, you will see a sign which states the name  of town and how many inhabitants does it have .

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In the early of jet development, jet engines used great numbers of fuel.

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People believe that he is a kind doctor.

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The Unita Mountains of north-eastern Utah are the only range of mountains in North America that runs East and West for its entire length

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Georgia has too types of soil that virtually any temperate-zone crop can be grown there.

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When there are low sales, companies often decide developing old products.

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Researchers of economics, psychology, and marketing can help businesses.

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New uses plastics were found during the 1950’s and 1960’s medicine, space, research, industrial, and architecture

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They were finally  ______________   with each other, after not speaking for nearly five years.

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Under any circumstances will late arrivals be admitted to the theatre before his interval.

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In England as early as the twelfth century , all young boys enjoyed to play football.