شرکت در آزمون آنلاین زبان انگلیسی 1 - واژگان (Vocabulary) | آزمون شماره 9546

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There's no doubt that as more business begins to sell the same product, competition .............................. .

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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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Damavand is not as … as Everest.