شرکت در آزمون آنلاین زبان انگلیسی 1 - واژگان (Vocabulary) | آزمون شماره 10287

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Studies show that if a working environment is pleasant and friendly, the employees’ happiness … and they work better.

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4- If they throw stones at you, .......... of throwing back, use them to build your own house.

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The Australian researchers have …… an experiment in order to find a cure for the hepatitis disease that has killed millions of people in the past thirty years.