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Choose either of these two topics and write an essay with at least 250 words within 40 minutes. (1) Many people say that we have developed into a "throw-away" culture, because we are filling up our environment with so many plastic bags and rubbish that we cannot fully dispose of. To what extent do you agree with this opinion and what measures can you recommend reducing this problem? (2) Fossil fuels, such as coal, oil,natural gas, are used in many countries. But in some countries, the use of alternative sources of energy, including wind and solar power, are encouraged. Is this trend a positive or a negative development?