Где писать it и где писать there . или вообще как их

It- местоимение
пример: it is my dog (ЭТО моя собака)

there (там, тут,здесь)
пример: My dog is there (моя собака ТАМ/ТУТ/ЗДЕСЬ)

The lifeimpossible without air. He has lived the debt a life. 2. Beside it profound knowledges on this subject. The knowledges possible to gain the stubborn labour. 3. Send me salt, please. The Physician to him there is all without salt. 4 Not stay at home beside window, you catch cold. Abig window was in coupe. He has pointed to small window on heel floor. 5. Nobody does not love the bad weather. The Weather was beautiful. 6. Water required for life. I can't sail in such cool water. Today water cool or warm ? 7. One of the student has done the report about the last event in Africa. 8. I never saw such strange singnature. 9. "You to come on exam once again, young guy", has said the professor

1. Life is impossible without air. He lived a long life. 2. He has deep knowledge on the subject. Knowledge can be acquire through hard work (work).

3. Pass me the salt, please. The doctor told him to eat everything without salt. 4. Don't sit by the window, you'll catch a cold. In the compartment was a large window. He pointed to a small window on the fifth floor. 5. No one likes bad weather. The weather was beautiful. 6. Water is essential for life. I can't swim in such cold water. Today, the water is cold or warm? 7. One of the students made a report on the latest developments in Africa. 8. I've never seen such a strange signature. 9. "You'll have to come to the exam one more time, young man,"said the Professor. A friend of my brother was quite a young man. Ask the young person to move.

Переводчик, небольшая коррекция и готово!