What are the advantages and disadvantages of keeping pets?请用英语回答这个问题.（100个单词左右）
问题描述：
What are the advantages and disadvantages of keeping pets?请用英语回答这个问题.（100个单词左右）
答
Keeping Pets Men have kept pets since ancient times.We can see from discoveries in the pyramids in Egypt and from scenes on decorated wallcoverings of European castles that our ancestors were as inter...