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About 200 million years before, all continents were part of one vast land mass called Pangaea.

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The sum of all chemical reactions in organism’s living cells are called its metabolism.

He has a very outgoing ________ and makes friends very easily.

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So far most than million different species of insects have been identified and named.

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Until recently, photocopy machines were regarded strict as business and professional office equipment that required (\lot of expensive service.

The students are expected to stick___________ their school’s regulation.

We sometimes go away from the city to the countryside for a_________ of fresh air.

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The fossil remains of much extinct mammals have been found in the tarpits at Rancho La Brea in city Los Angeles.

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It’s time you went home, but I’d rather you stay here.

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The teacher taught her students to look careful to the left and the right at three times before crossing the highway.

IChoose the  part among A, B, C or D that needs correcting.

John’s friends had celebrated a farewell party for him last Sunday

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Stand up straight, breathe deeply hold your head up, and no look down!

She made a big ___________about not having a window seat on the plane.

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Psychologists at the University of Kansas has studied the effects of the color (of room on people’s behaviors.

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Most of types of dolphins live at less twenty-five years, and some species may reach 50 years of age.

Mark the letter A, B, C or D to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.

Sometimes, in order to get things done, you have to take the initiative.

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Among the world’s 44 richest countries, there has been not war since 1945.

Mark the letter A, B, C or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.

A cure for the common cold, causing by a virus, has not been found.

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Although the Red Cross accepts blood from most donors, the nurse will not let you to give him blood if you have just had a cold.

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Before she moved to California, with its much milder climate, Betty found that health improved considerably.

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The composer Verdi has written the opera Aida to celebrate the opening of Suez Canal, but the opera was not performed in 1871