Dear Editor:

   Today we had a dicussion of whether we need to build zoos to portcect the endangered animals. Some

 students think we should build zoos,because the zoos are like living textbooks and they can provide

 homes for endangered animals. And they can also educate the public about caring for them. And some

 students disagree, they think animals are kept in the tiny cages, they can hardly move at all, they are only

 given good once a day. I don't think it's a good idea to keep the animals in the zoos, they should go back

  to the nature, but the zoos are necessary for the endangered animals. …

                                                                                                   Sincerely                                              

                                                                                                  Animal Friend

(答案不唯一)