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The discovery of the antibiotic penicillin in 1928 has not produced antibiotics useful for treating of infectious diseases until 1940.

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  Without alphabetical order, dictionaries would be impossibility to use.

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  They are going have to leave soon, and so do we.

• Choose the best answer to complete each unfinished sentence, substitutes the underlined part.

  You need to read newspapers and watch the news to keep ________on current topics.

ZUNIA12

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  Physiologically, the period of adoles is marked by growth, especially in the skeletal and muscular systems and in a certain

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  Anyone reproducing copyrighted works without permission of the holders of the copyrights are breaking a law

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  In the sixteenth century, Francois Vieta, a French mathematician, used the vowels to represent a unknown number.

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  The function of pain is to warn the individual danger, so he can take action to avoid more serious damage.

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  Nobody bothered with telling me that my school had decided to have a special holiday on Friday.

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  Floods and earthquakes and other natural disaster happen all over the world, causing death and material damage.

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  She must retyping report before she hands it in to the director of financing.

• The roses …………….he gave me are very beautiful.

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  How much times did Rick and Jennifer have to do the experiment before they obtained results they had been expecting?

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  A cat sleep sixteen hours for a day in short intervals called ‘cat naps.

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

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  River transportation in the United States consists primarily of barges pull towboats.

• On the street, two friends are talking tabout a place to have lunch. Anna: “yes, there’s a wonderful restaurant right down the street from the school”.

  Susan: _________

  Anna: “Yes. And the food is good too”

   

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  Stuart stopped to write his letter because he had to leave for hospital.

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  While studying the chemistry of human body, Rosalyn Yalow won a Nobel Prize for the research she conducted on role of hormones.

• Choose the best answer to complete each unfinished sentence, substitutes the underlined part.

  If you are _______, you are capable of doing or deciding by yourself, rather than depending on other people for help.

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  Mrs Stevens, along with cousins from New Mexico, are planning to attend the festivities.