写一篇关于自然的短文 — 英语填空题
题目
用方框中所给词的适当形式补全短文（每词限用一次），使短文完整、通顺。\n词库：tree / bird / clean / beautiful / love\nI ____1____ nature very much. In spring, the ____2____ turn green and ____3____ sing in the sky. The river is ____4____ and the flowers are ____5____. Let's protect nature together!