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[復(fù)習(xí)必備 | 海量免費(fèi)學(xué)習(xí)視頻資源盡在“學(xué)而思輕課APP”>>>點(diǎn)擊了解]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.