During his visit to Cuc Phuong National Park, he discovered many kinds of rare flowers.Đoạn văn20/35During his visit to Cuc Phuong National Park, he discovered many kinds of rare flowers. While ____________________ Cuc Phuong National Park, he discovered many kinds of rare flowers. (WAS)Nhập câu trả lời ở đây0/3000 ký tựXác nhậnGiải thíchhe was visiting