LESSON 17 A bird is in the tree. It has a nest there. The nest has five eggs in it. Do not rob the nest. Will the bird let the cat get her five eggs? 【中文阅读】 树上有只鸟,它在那儿安了家。 鸟巢里有五个鸟蛋。 不要毁掉这个鸟巢。 鸟会让猫弄走它的五枚鸟蛋吗?