Нужно решить грамматику во всех 3х вариантах !

Kyiv Rus. During the
A.D. 800s, a Slavic civilization called Rus grew up in Kyiv and at other points
along river routes between the Baltic Sea and the Black
Sea. The term Ukraina
first appeared in the chronicles of ancient Slavs in the XII century as a
geographical name of the southern lands of the ancient Kyiv Rus. Kyiv became
the first of the East Slavic states and was known as Kyiv Rus. Scandinavian
merchant-warriors called Varangians (also known as Vikings) played a part in
organizing the East Slavic tribes into Kyiv Rus. Oleg, a Varangian, became