Conservation is the protection of natural things, e.g. <span>plants and animals.
Acid rain is rain that </span><span>contains dangerous chemicals. It is caused by smoke from factories. The ozone layer is a layer of gases that stop dangerous radiation from the sun from </span><span>reaching the earth. Global warming is an increase in world t</span><span>emperature caused by an increase in carbon dioxide. CFC is a chemical which destroys the </span><span>ozone layer.
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Сохранение - это защита природы, например, растений и животных. Кислотный дождь - это дождь, который содержит опасные химические вещества. Он возникает из-за заводского<span><span> дыма</span>. Озоновый слой представляет собой слой газов, которые не лают опасному излучению солнца достигать земли. Глобальное потепление - это увеличение всемирной температуры, вызванное увеличением количества углекислого газа. CFC - это химическое вещество, которое разрушает озоновый слой.</span>
1. have-having 8.drank-drinking 2.have-having 9.invited-inviting 3.need-needing 10.invited-inviting 4.need-needing 5. bought-buying 6.bought-buying 7.drank-drinking
The town is bigger village and the city is bigger towns.
Australia is bigger Great Britain and Russia ais bigger Australia.
1. Who is playing basketball at the moment? Is Jason palying basketball at the moment?<span>Jason is playing basketball at the moment, isn't he? Is Jason plying basketball or tennis at the moment?
2. What do we write every week? We write tests every week, don't we? Do we write grammar tests every week? Do we write tests or compositions every week?
3. Who gets up at seven o'clock every morning? </span>Every morning my mother gets up at seven o'clock, doesn't she? Does my mother get up at seven o'clock every morning? Does my mother get up at seven or eight o'clock every morning?
4. Is the sun shining brightly now? The sun is shining brightly, isn't it? Is the sun or moon shining brightly? What is shining brightly now?
<span>1. If I ... (do not see) you tomorrow, I ... (will phone) you.
2. When I ... (come) back home tonight, I ... (</span><span>will take) a shower.
3. Take an umbrella in case it ... (rains).
4. Be careful! If you ... (are not) careful, you'll fall.
5. We ... (shall not start) dinner until all our friends… (arrive).
6. Your father ... (</span><span>will help) you, as soon as he ... (has) time.
7. I ... (</span><span>will lend) you the money on condition that you ... (return) it to me next week.
8. I'm going to work in the garden this afternoon unless it ... (am) too cold.
9. My sister wants to live in our house while we… (is) away on holiday.
10. If it ... (is) hot in the afternoon, we… (shall go) to the beach.
11. Will you ... (go) to the party if they ... (invite) you?
12. I ... (</span><span><span>will </span>tell) him the news when I ... (see) him.</span>