Because the diamond is the hardest naturally occurring substance, it is used industry for to cut, grinding, and boring other hardly materia

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• Our house has been redecorated last week. You can still smell paint when you enter and the wallpaper has striking contrast with the floor

• Children’s games, which are amusements involve more than individual, appear to  be cultural universe.

• It is the large city in Europe with a population of eight million.

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• To assure the safely of those workers who must handle radioactive materials, the employer should not leave them enter contaminated ar without protective clothing

• To help policy makers another, the government spends as much as $1.4 million a year in collecting statistics.

• The 22nd SEA Games consisted of athletes from eleven __________ countries. 

• One reason birds have been so successful is because of their able to esca from danger quickly.

• Living in New York, apartments cost more to rent than they do other smaller cities.

• The ancient Romans used vessels equipped with sails and banks of oars transporting their armies.

• Find out error in each sentence: Our lifestyle changed since running water came to our village

• Lawrence Robert Klein received the 1980 Nobel Prize economics for pioneering the useful of computers to forecast economic activities

• In purchasing a winter coat, it is very  important for trying it on with heavy clothing neath.

• A good artist, like a good engineer, learns as much from thei mistakes as from successes

• It was suggested that Tom studied the docum more thoroughly before attempting to pass the exam

• The film  we saw ast night was different from that I expect.

• Algebra is the branch of mathematics concerned with operations on set of number or other elements that are often represented at symbols.

• River transportation in the United States consists primarily of barg pull by towboats.

• However types of raw materials are used in making paper, the process is essential the same.

• All nations may have to make fundamental changes in their economic, political, and the technological institutions if they are to prese environmen

• The world would look may different  if human eyes were sensitive to infrared adiation .