I still remember the first day I went to the zoo. When I was only five years old， my mother took me there. I was pleased to see so many real animals at the same time.
They seemed so lovely and active. I spent a nice day. But on my way home， I began to feel sorry for them. They were taken away from their parents and frie[复习必备 | 海量免费学习视频资源尽在“学而思轻课APP”>>>点击了解]nds and also far away from the nature. They must have felt lonely， I thought.
Every day， the only thing they could do was to sit there and wait for food.