Task 1: Use the prepositions where necessary to complete the text. at, from, to, in (2), into, of (3), on (3)

Решение:

Russia is the largest country in the world but at the same time its population is smaller than in some other countries, China for example. Our country stretches across the Baltic Sea and the Pacific Ocean. There it borders on China and Japan. The largest river in Russia is the Volga. It flows into the Caspian Sea. A lot of old Russians cities lie along it. The chain of mountains along the Pacific Coast are not very high. Russia is one of the greatest countries of the world and we are proud of it.