牛津译林版英语七年级下册综合能力提升Unit,8Pets 综合能力提升 .完形填空 Tweet was a quiet little bird.All day long, he sat alone in his tree.He _1_ sang.He just watched the world around him.Tweet watched frogs and _2_ swimming in the pool.He watched rabbits and mice playing in the woods.Day after day, he sat in the same tree and watched the same things. One day, there was something _3_. Some birds were born.The babies opened their eyes to see.It happened right in Tweets tree.The babies opened their mouths wide.T
