1. There are a lot of tigers and lions in Africa.
2. Elephants like bananas.
3. Monkeys are funny animals.
4. Can cat swim?
5. My cat is very nice:it has bright green eyes and red stiff fur.
6. Do you like dogs? Yes, i like big dogs.
7. Do your parents work on Saturdays? - No? they don't On Saturdays sometimes all our family goes to the park.
8. Does your friend swim well? Yes, he does. He lives in Samara. He swims in Volga.
9. Look! What is there on the tree? It is a big beautiful bird.
10. Does your brother like cats? No? he likes only computer. It is his hobby.
11. Do giraffes live in Russia? yes. they live in the zoo.
Сказка это выдуманная история, часто с определенным подтекстом -- сказка ложь, да в ней намек, добрым молодцам урок) А предание претендует на определенную достоверность со слов очевидцев, но так как передается "из уст в уста", то чаще всего сильно искажается со временем)
Надо писать первый вариант, так как используется форма Am/is/are + V3.
2) mustn't
3) must find
4) don't have to book
5) mustn't
6) have to stay
7) don't have to pay