----- Nội dung ảnh ----- **Hoàn thành các câu với dạng quá khứ đơn của các động từ trong hộp:**
1. _ your used books to your local library or charities. 2. _ a fundraising event to raise money for charity. 3. _ polluted rivers and lakes. 4. _ trees or flowers in your backyard or community garden. 5. _ at a nursing home, soup kitchen, or homeless shelter. 6. _ plastic and paper for a clean environment. 7. _ nutritious meals to the poor and needy people. 8. _ homeless children who are unable to attend school.
