Complete the sentences

1.Taiga /простирается/ for many hundreds of kilometers. 2. The climate varies in /различных/ parts of our country. 3. Moscow is /столица/ of our country. 4. Numerous canals /соединяют/ all the rives in the European part of Russia. 5. Southern Russia /покрыта/ with mixed forest-steppe. 6. Russia is one of the leading /держав/in the world.