1 . 上周日，你和朋友们参加了清洁公园的志愿工作(voluntary work)。请你根据写作提示，写一篇60词左右的英语短文，介绍这次活动情况。
提示：1. How was the weather?
2. How did you get to the park?
3. What did you do in the park?
4. How did you feel?
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