题目内容：

Dear editor,

Last week I 1. (visit) our zoo, and I was very surprised 2.(find) hardly anyone there. Zoos are important places .They are like living textbooks for young people. They provide homes for many endangered animals and help to educate the public about 3.(care) for them. If we 4.(not support) our zoos, they 5.(not have) enough money to take care of so many fine animals. I urge all of your readers to visit our wonderful zoo soon.

Sincerely,

Animal Friend