Что такое A1, A2, B1, B2, C1, C2 и с чем их “едят” ?)
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Istanbul Complete Set Turkish Language Course Books 5 Books for Beginner to Advanced Levels: A1 A2 B1 B2 C1: Gul Gonultas, Enver Gedik, Funda Keskin: 9786054892013: Amazon.com: Books