I must tidy my room.
I must wash the dishes after dinner.
I must close the door when I leave the house.
I must not talk loudly when my little sister is asleep.
I must not run in the house, I can only run outside
1/ I have to sit at home these days. The doctor says that I should not go out until the temperature is normal. 2. Sit here, while he's busy. I think you don't have to wait long. 3. The show was supposed to have to at seven o'clock. 4. We had to postpone the trip, as the weather deteriorated. 5. If You want to master the language, You have to a lot to read. 6. Under the new schedule, we will have five English lessons per week. 7. We decided that we should all take part in the concert. 8. Sooner or later You will have to go to the doctor. 9. Next year we should begin the study of astronomy. 10. To develop a new theory, scientists had to spend countless experiments. 11. You have to learn this poem to the environment. 12. I was asked to learn this poem to the environment. 13. I had to learn this poem to the environment. 14. I have to learn this poem to the environment. 15. He has to teach this poem today because he had not learned it yesterday. 16. You don't have to learn this poem. 17. I didn't have to teach this poem. 18. As he learned this poem yesterday, he didn't need to learn it now. 19. This week we're going to meet with the great scientist. 20. There was no way out, and he had to pay the fine. 21. I was asked to write an essay on Pushkin, and for this I had to re-read some of his works, which I don't remember.
Many people think that wild animals, living in jungles, forests and mountains, are cruel, and animals living in the zoo are kind, funny and they are real peoples' best friends. But it's not like that. Not everyone knows that these animals aren't happy to live in the zoo because they live there like in prison. People that come to see them on the weekends often feed animals with food which is not good for them, and after that monkeys, bears and others are falling ill. Animals are afraid of their masters as they beat them in cages to be calm and obedient. and every day they have to do things they don't like. animals can't run and jump as the like because they are not free. The zoo also travel very often from one town to another. It's very hard for poor animals. We can't forget that we should take care of animals because they are our little brothers and friends. We should be responsible for them, and let them live in their native places - in jungles, forests and mountains as they are free there and happy.
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