1. We were thankful to him for his ... to help us.

2. I hope this trip will ... your knowledge about the birds that are found in our country.

3. Please remind him of his promise, he is ... as you know.

4. I am sure he is ... to do it without your help.

5. This song has such a ...tune.

6. He cannot have done it all by himself! It is ...!

7. The municipal authorities decided to ... the road in summer.

8. 1986 (the year of Chernobyl) was ... for Belarus.

9. We want to express our sincere ... for your assistance.

10. During World War II Minsk was almost completely ... by the Nazis.

11. There was not enough time to prepare for the test, and we were certainly ... with the results.

12. You should try to find the best ... to this problem.

13. Do not worry, he is no longer ... when he drives.

14. You will not succeed if you are so ... .

15. The task is too difficult. You should have ... it.