自然公园相关单词：tree, flower, bird, river — 英语填空题
题目
在自然公园（nature park）里，Tutu 看到了许多景物。请根据中文提示，把单词写在横线上：Look! There is a tall ___（树）. The ___（花）is red and beautiful. A ___（鸟）is singing in the tree. The ___（河）is clean and long. How nice the nature park is!