It was _____ a difficult question that they couldn't explain.

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The scientists ……….. the behavior of the laboratory animals.

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As we expect to receive hundreds of applications for the position, please -------- your resume to two pages.

Choose the best answer among A, B, C or D that best completes each sentence: A box is square, whereas ……….

Though he tried hard, he didn’t succeed.

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During the music festival, goods will be sold only by   _____________ vendors who have registered with the planners.

The assets of Marble Faun Publishing Company. ..............last quarter when one of their main local distributors went out of business.

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The restrooms on the second floor are ------unavailable because one of the sinks is being replaced.

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A ................. is a trip you take by plane.

__ some German and British management styles are similar, there are many differences between them.

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I'm expecting to have this book ................ soon this year.

By the end of 2010 we ............. in Ho Chi Minh City for 30 years.

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According to company policy, -------requests for reimbursement of business expenses must be accompanied by a receipt.

Rather than the usual hosted dinner and drinks, we will be ............... tonight at the Mandarin Garden at 2025 Shattuok Ave, near the comer of Elm Street.

Karen Solden will replace Harold Walker, ................. is being promoted to a higher position in the company.

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Compared with other dairy products, yogurt will has remained ------- inexpensive.

__________is wiping out many kinds of plants and animals.

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The High Performance weather gauge is ------- accurate in measuring the level of humidity in the air.

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Everyone was attracted by her grateful __________ .

My mother ______me from going home after 10 p.m. every day.

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----------- the candidate's official announcement that he will run for office, he met privately with his advisors.