你班同学参加了二十一世纪中学生英文报组织的一场讨论。讨论的主题是：城市是否可以豢养宠物（狗和猫）。请你根据下表所提供的信息，给报社投稿，介绍讨论情况，并说明自己的观点和建议。反对饲养宠物的同学认为 支持饲养宠物的同学认为1、造成环境污染 1、安慰孤寡老师2、吵闹声，甚至伤人 2、人与动物和谐相处，增添生活乐趣注意：1、信的开头已为你写好2、词数100左右Dear editor: Recently we have had a heated discussion on whether people should keep pets at home in cities. Some students think it's a good idea to keep pets because many old people who live alone at home can get some comforts from pets. Besides , getting along well with animals will make our life interesting. On the contrary the other students are against the idea. In their opinion if too many people keep pets at home, it's bad for the environment. What is worse, pets may make too much noise and even attack people. I like animals, so I don't think it's bad to keep pets at home. But we must take some measures to prevent them from polluting our environment.