Keys 7-8
1/
Машины вырабатывают топливо.
• Электростанции осуществляют токсичные выбросы.
• Эти загрязнения скапливаются в облаках.
• Эти загрязнения оседают на деревьях.
• Дождь со снегом.
• Это уничтожает рыбу.
• Это отравляет деревья.
• Пытается сократить.
• Энергия солнца.
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Tony has been talking on the phone for two hours.
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• I have been looking for my keys since 11 a.m.
• We have been waiting for the bus for 20 minutes.
• She has been playing computer games for 50 minutes.
• They have been living in Moscow since January.
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– Why is he wet? – He’s been under the rain for two hours.
• – What have you been doing? – I have been pottering (working) in the garden.
• – Why are you crying? – I have been watching my favourite drama for hour and a half.
• Hand in your test papers, please. You have been doing it for 40 minutes.
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It has been snowing all day.
• She’s been working in hospital since 1999.
• How long have you been having your driving classes?
• I have been learning English for a long time.
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We all should try to make up with friends soon after silly tiffs (ссоры).
• I cannot make out this rule.
• Do you easily make up stories?
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Jane has been teaching the cycle of life for 20 minutes.
• Rose has been cleaning out a pond for 30 minutes.
• Dave has been planting flowers since 2 o’clock.
• Tim has been building nesting boxes all day.
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Rose is cleaning out the pond, isn’t she?
• Andy has been reading a book for 15 minutes, hasn’t he?
• Sally is collecting rubbish, isn’t she?
• They study at a secondary school, don’t they?
• You can speak three languages, can’t you?
• He has passed the exam, hasn’t he?
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