Bai tap Unit 6Global warming

<span class='text_page_counter'>(1)</span>Rewrite the sentences using perfect gerunds or perfect participles 1. Someone had started a fire in the forest. Tom admitted that he had done it. - Tom admitted (to) having started a fire in the forest. 2. In the Tree Planting Competition, the students in Group 11G planted the most trees in the schoolyard. They were praised for that. The students in group 11G were praised for having planted the most trees in the schoolyard in the Tree Planting Competition 3. After we made all necessary preparations, we put our plan into action. Having made all necessary preparations, we put our plan into action. 4. After I watched the documentary about wildlife, I made a donation to an environment society. Having watched the documentary about wildlife, I made a donation to an environment society. 5. After I ate my evening meal, I decided to go for a walk. Having eaten my evening meal, I decided to go for a walk. 6. Someone had cut down the oldest tree in the park. The police suspected Mike of doing it. The police suspected Mike of having cut down the oldest tree in the park 7. He had dumped lots of rubbish onto the beach. He denied it. He denied having dumped lots of rubbish onto the beach 8. You had save the lives of hundreds of wild animals. Thank you for that. Thank you for having saved the lives of hundreds of wild animals 9. Because I had spent the whole day cleaning up my room, I need to take a shower and have a rest. Having had spent the whole day cleaning up my room, I need to take a shower and have a rest. 10. Since the authorities had managed water resources irresponsibly, they had to deal with water shortage. Having managed water resources irresponsibly, the authorities had to deal with water shortage. 11. After we had read the stories about people who reduced their carbon footprint, we started to change our daily consumption habits. Having read the stories about people who reduced their carbon footprint, we started to change our daily consumption habits. 12. They had hunted and killed many wild animals. Later they regretted what they had done. They regretted having hunted and killed many wild animals 13. The factory had dumped tons of toxic waste into the river. It was heavily fined for that. The factory was heavily fined for having dumped tons of toxic waste into the river 14. Denis had taken an active part in the Green Summer activities. He was rewarded for that. Denis was rewarded for having taken an active part in the Green Summer activities 15. Because the farmers had been told about the dangers of chemical fertilizers, they turned to biofertilizers. Having been told about the dangers of chemical fertilizers, the farmers turned to bio-fertilizers. 16. After I finished all my homework, I watched my favourite film on TV. Having finished all my homework, I watched my favourite film on TV. 1. Having learnt about the benefits …, the students … 2. Having refused Nam’s offer of a lift in his car, Mai had to … 3. Having read some documents about Green Earth 4. Having used too much chemical fertilizer on their farm, the farmers … 5. Having replaced all the light bulbs …, she saved 6. Having become too dependent on the use of electricity. 1. Tony was strongly criticized for having dumped … 2. Sam regretted not having worked hard enough … 3. People admire Tony for having rescued the … 4. I remember having seen him before 5. The politician denied having lied to the villagers 6. Thanh admitted having forgotten ….

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