1. The Mississippi is (long) river in the world. 2. My cigarettes are (bad) than yours. 3. The battle of Waterloo was the (great) battle of all times. 4. This plan is (practical) of all. 5. She is not so (tall) as her sister. 6. He is (strong) than his brother. 7. Our house is as ( low) as yours. 8. Elbrus is the (high) peak in the Cau- casian mountains. 9. The Neva is (wide) and (deep) than the Moskva river. 10. This method is (efficient) than the common one. 11. October is (cold) than June.

1. The Mississippi is the longest river in the world.