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Last year, our community decided to take action to save the local river. For years, the river was ________ polluted. Factories nearby dumped waste into it, and people threw trash everywhere. The water turned dark, and fish ________ to survive.
One day, our science teacher showed us photos of the river from 20 years ago. It was so clear that you could see the bottom! We realized we couldn’t ________ anymore. First, we organized clean-up activities. Every weekend, volunteers ________ plastic bottles and bags from the riverbank. Next, we wrote letters to the government, asking them to ________ stricter laws against pollution. Surprisingly, they agreed!
Now, the river is much ________. Birds have returned, and children even swim in it in summer. Our success sho
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