Variant 1 A.Underline the right form to complete the sentences.
1) Mr Green is not a good doctor. If he (were / had been) more patient, people would (respect /
have respected) him.
2) If you (didn't break / hadn't broken) the glass, you wouldn't (wake / have woken) me.
3) Helen wouldn't (be / have been) busy now if she (did / had done) her homework.
4) I would (be / have been) happy then if I (wrote / had written) the essay yesterday.
5) If the babysitter had not needed to leave, she (would have stayed / stayed) longer.
1) Paper is one of the most frequent waste materials, but it can be recycled.
2) Nuclear waste can contaminate the groundwater.
3) Pesticides are usually poisonous substances. But organic fertilisers, e.g. manure, are harmless.
4) Coniferous forests in the Northern Bohemia were polluted by acid rains.
5) Chemical factories discharge large amounts of waste water into rivers.
6) Paper, glass, plastics, and metals are recyclable materials.
7) Acid rain is caused by discharging gases.
8) CO2 is a pollutant which probably contributes to global warming.
9) Changes in the climate are due to pollution of the atmosphere.
My hobby is playing computer games. Both grown-ups and children are fond of it now. It has become one of the most popular hobbies nowadays. I think that playing with a computer is very interesting. It is not only "wasting time" as some people say.
Computer games make us to think things over properly, they widen and develop our mind and imagination. I have a good collection of different games and when I have some free time I play them with great pleasure. My favourite game is...
Some of my friends have the same hobby and we like to play together.