2. 1) Our teacher known several foreign languages.

2) This is my friends book.

3) He lives in Russia.

3. 1) —

2) The, —

3) a

4) the

5) —

6) a

4. Flowers, roses, pictures, maps, rages, days, ships, worlds, years, rivers, capitals, ways, villages, aunts, times, shops.

5. 1) b

2) a

3) c

4) c