Black bears and polar bears are different in many ways. But they also have a lot in common. Their body shapes are alike, and they both have thick coats of fur. Baby bears of all kinds are very small and stay with their mother for a year or more. The main difference between black bears and polar bears is their size. Polar bears can be up to three times as big as black bears. Black bears eat berries, nuts and small animals. Polar bears eat see animals. Black bears sleep during the winter, but polar bears remain active. This text deals with ... 1) climate. 2) a kind of a poem. 3) a capital city. 4) traditional food. 5) a fairy-tale character. 6) a writer.

1.I haven't eaten today yet. 2. He didn't yes­terday. 3. Did you play the piano yesterday? 4. Have you played the piano today?5. What have you prepared for today?6. Look at this birdhouse. Mike has made it himself. He made it last Sunday.7. Where did you put my pen? I cannot find it.8. Have you seen Mary today?9. When Did you see Mary? — I didn't see her last week. 10. Did Your mother promise to take you to the theatre? 11. Look at my new dress! I have made it myself.12. He is not at school today, he fell ill. — When did he fall ill? — He felt ill yesterday.13. I have already done my homework. Now I can go for a walk.14. I did my homework yesterday.15. He has just came home. 16. He came home a minute ago.17.Nick played foot­ball yesterday.18. She has already came from school. Now she is doing her homework.19. I read this book last year.20. I have read this book this year. 21. I have never been to Washington.22. Have You ever been to New York?23. Have You ever seen the eruption of a volcano?24. I invited Linda to the party. — When did you see her? – I haven't seen her for ages. I called her an hour ago.

1. I haven't eaten today yet. 2. He did not eat yesterday. 3. Did you play the piano yesterday? 4. Have you play the piano today? 5. What you have prepared for today? 6. Look at this birdhouse. Mike made it himself. He made it last Sunday. 7. Where did you put my pen? I cannot find it. 8. Have you seen Mary today? 9. When you saw Mary? — I saw her last week. 10. Your mother promised to take you to the theatre? 11. Look at my new dress! I made it myself. 12. He is not at school today, he has fallen ill. — When he fell ill? — He fell ill yesterday. 13. I have already done my homework. Now I can go for a walk. 14. I did my homework yesterday. 15. He has just come home. 16. He came home a minute ago. 17. Nick played football yesterday. 18. She has already come from school. Now she is doing her homework. 19. I read this book last year. 20. I have read this book this year. 21. I have never been to Washington. 22. Have you ever been to New York? 23. Have you ever seen the eruption of a volcano? 24. I invited Linda to the party. — When you saw her? — I haven't seen her for ages. I called her an hour ago.