The polar bear is the largest predator of the animal world. The weight of males is 400-500 kg, females is up to 380 kg. The bear perfectly floats and dives. He quickly moves on the ice. The polar bears hunt on walrus calves, eat also sea emissions, fish and birds. The maximum life span of a polar bear is 25-30 years.The polar bear has an elongated body, a long agile neck and a small head with narrow forehead and small, high-set eyes. This animal has got very strong legs with large claws. The feet of the polar bear are wide. The fur covers all body of the animal and has a white color, it isn't changing on seasons of year. But the skin of a polar bear is dark, almost black. The polar bears are listed in the Red Book of Russia.
1. Are there ten ot eleven students in my group? 2. Does Mario or Mary want to become a singer? 3. Is it dark or light outside? 4. Can Betty play the piano or gitar? 5. Is my mother or my sister my best friend? 6. Will she get this information tommorow or next week? 7. Is Kate's father a tall or s short man? 8. Did we meet two or three years ago? 9. Have they been here for an hour or two already? 10. Must the partners give the answer now or in an hour? 11. Does my brother or my sister have a big family? 12. Do students or pupils have to be hardworking? 13. Does my little son have to be very careful with his keys or with his cellphone? 14. Is my granny sixty or sisxty five years old? 15. Would I like a glass of cola or a glass of Fanta?.
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