fill in the gaps with the correct preposition. They, correct the statements. Compare with your partner.
1.LifeEarth arose in an oxygen-rich environment.
2.Our bodies process oxygen 100% effectiveness
3.Oxygen has always been present the atmosphere.
4.The appearance of photosynthesis plant is known as the Great Oxidation Event.
5.Evidence suggests animal life appeared
land and the oceans about the same time.
6. Land animals depend land plants for most of their oxygen

passive voise -это действие, направленное на подлежащее (т.е. с ним что-то делают)

1.this house was built two years ago.

2. the car is being washed.

3. i was asked bu my friend.

4. the book is usually read by me in the evening.

5. the grammar rule is usually explained twice.

6. the newspapers are brought in the morning.

7. the walls are painted blue.

8. the books are sold at the bookshop.

9. at that moment the newspaper was being printed in the printing house. (в это врем газета печаталась в типографии)

10. the doctor has just been sent for. (за доктором только что послали)

the first us president known to all americans as "the father of the nation" was george washington.he was born in virginia into a planter's family.when he was 11 his father died.the family had a lot of land but not enough money to send george to school in england as rich families used to do at that time.george learned to ride a horse,to hunt,shoot,sail and swim.george washington began his career in the service of his county as a major in virginia militia and later became commander in chief of colonial army during revolutionary war.he was among those who wrote the us constitution in philadelphia.people respected him for his wisdom and honesty.after the war george wanted to retire and live at mount vernon where he had a beautiful house and a big platation.on april 30, 1789,before a large crowd washington promised to preserve,protect and defend the constitution of usa.this is how gw became the first president of the contry and served 2 terms.he refused a 3rd term and in 1797 he retired to mount vernon where he died 2 years later

there isnt bookshelf bu the window

there are no girls in the room

there isnt an armchair by the table

there arent any beds in the bedroom