英语作文,假如你叫王凡,是一名八年级的中学生.这个星期的上午,你们班去了动物园,请根据下面的提示

It was fine yesterday, I went to Beijing Zoo with Wang Fei. There were lots of animals in the zoo. We saw elephants, monkeys, bears and so on. They were so interesting. But we saw some visitors throwing stones to a small monkey. We went over to them and stopped them. We said to them,"Don't throw anyting to animals. It is our duty to protect animals." They said they were sorry after hearing our words. Later we were tired and we went back home. We enjoyed ourselves in the zoo yesterday.