6. Answer the questions, a. What makes up an ecosystem?
b. Why do we need to protect the Earth from pollution?
c. What can the effect of pollution be?
d. What is an ecosystem?
e. Is it possible to change an ecosystem?
f. Are people the only ones who disturb the balance of the environment?
2. Harry never looks at his wife when they sit in the living room.
3. Harry always reads the newspaper when he eats breakfast with his wife.
4. Harry never talks to his wife when they eat breakfast together.
5. When they go to parties, Harry usually sits with his friends.
6. Harry seldom dances with his wife when they go to parties.
7. Harry is lazy. He never helps his wife.
8. When their windows are dirty, Harry never washes them.
9. When their car is broken, Harry never fixes it.
10. When their cats are hungry, Harry never feeds them.
11. Maybe Harry doesn’t love his wife.
1. was still being built
2. would never be discovered
3. is being washed
4. had been given
5. was still being examined
6. had been arranged
7. had been restored came
8. have been built
9. has been widen
10. were being followed
11.had been promised
12. was being recorded
13. found had been cancelled
14. would be completed
15. is delivered
16. were kept (were being kept)
17. was seen had been found
18. have been working is being redecorated
19. will be made are interviewed
20. is being organised
21. graduated had been offered
22. had told
23. was being repaired hasn't been still finished
24. is being repaired
25. Has my parcel been posted?