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Đọc đoạn văn, sau đó tìm, gạch chân và sửa lại lỗi sai( có 10 lỗi) RECYCLING PAPER AND SAVING TREES The world cuts up more than a millions trees every year to make paper and paper products. In the USA, each person using about 300 kilograms of paper each year. In Europe, the finger is 200...