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

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• Medical research indicates that large amounts of Histamines can responsible for cold, high fever, and other respiratory reactions.

• Research has proved that a baby can distinguish its mother’s voice the moment he is born.

• Thanks to a considerable number of material data, we know pretty much about ancient Egypt, but few historical records of Babylon are available.

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• Many exercises such as calisthenics, running, or to swim involve producing muscle tension through a range of movements that are called isotonics.

• When I was a secretary, the boss often made me to stay in the office in the evenings.

• Marta being chosen as the most outstanding student of her campus made her parents very happy.

• Mosquitoes will accepts the malaria parasite at only one stage of the parasite’s complex life cycle.

• Ozone is an unstable faintly bluish gas that is the most chemical active form of Oxygen.

• The attribution of human characteristics to animals or inanimate objects appears in the mythologies of many cultures is a literacy device called anthropomorphism.

• The instructor advised the students for the procedures to follow in writing the term paper

• Philosophy, the inquiry into the nature of  human knowledge, it is still a very popular subject among university students

• I’m so tired; I’m finding it difficult in keeping my mind on my work.

• Our tomatoes are ripen nicely, they’ll be ready to eat in about a week

• Carnegie hall was the first building in New York designed special for orchestral music.

• Although usual living on or under rocks or on coral reefs, marine snails have been observed in a great various of habitats

• The company suffered substantial losses after the stock market crash and found it difficult for recovering.

• Materials that of clay are among the most ancient manufactured articles and have played a vital role in human civilization.

• There are no pouched animals in the United States but only the Opossum.

• The most common form of treatment it is mass inoculation and chlorination of water sources

• You frequently see this kind of violence on .................. television.