Complete these sentences with the correct form of the words in brackets: 1 what can we do to reduce the ……… (pollute) of the atmosphere? 2 the change in the climate has produced ……….. (disaster) floods. 3 many rare species are threatened with …….. (extinct 4 many of the gases produced by factories are ………. (harm) to our health. 5 exhaust fumes have ………. (damage) effects on the environment. 6 many countries must try and control the growth of the ……….. (populate). 7 protecting the environment is essential to our ……… (survive). 8 the ………. (protect) of the environment is everyone’s responsibility. 9 while some countries get richer, the ………. (poor) in others gets worse. 10 millions of people in the world are threatened with ………. (starve).

1 What can we do to reduce the pollution of the atmosphere?
2 The change in the climate has produced disastrous floods.
3 Many rare species are threatened with extinction.
4 Many of the gases produced by factories are harmful to our health.
5 Exhaust fumes have damaging effects on the environment.
6 Many countries must try and control the growth of the population.
7 Protecting the environment is essential to our survival.
8 The protection of the environment is everyone’s responsibility.
9 While some countries get richer, the poverty in others gets worse.
10 Millions of people in the world are threatened with starvation.

1. I hope to see you soon.

2. We expect to be back in two days.

3. He expected to be helped by his friends.

4. I am glad to have done all the homework yesterday.

5. I am sorry to have broken my pen.

6. I hate to be bothering you, but the students are still waiting to be given books for their work.

7. He seized every opportunity to appear in public: he was so anxious to be talked about.

8. Is there anything else to tell her? I believe she deserves to know the state of her sick brother.

9. He began writing books not because he wanted to earn a living.

10. The woman pretended to be reading and not to have heard the bell.

11. Perhaps it would upset her to be told the truth of the matter.

12. The only sound to be heard was the snoring of grandfather in the bedroom.

1. It's rude to eat with your mouth open.

2. Are you absolutely certain about  doing it?

3. I am addicted to  watching sports on TV, but I'm not really into playing!

4. Study immediately before going to sleep. You'll remember a lot more the next day.

5. We were unlucky  to lose the game, we deserved to win.

6. I don't mind  being alone, but it's better to be with other people.

7. What you don't want  to remember, you forget (?)

8. Playing games is a fun way of improving your memory skills.

9.  Experts say that it is pretty dangerous to do bungee jumping.

10. Most people are worried about losing their job, so they're trying best at  working.

11. I was really so surprised  to see you. I was happy  to come.

12. It is impossible  to succeed, if you are not ready to work hard.