语法填空

    There is a nature park in the southwest of our city. The government built it (protect) the rare animals. The nature (park) has been the (symbolize) of our city.

    Yesterday my friends and I visited it. The workers there asked us not (feed) animals. Many animals are in (dangerous) because people kill them for their meat and fur. Another reason is that people are taking their land and making their water (undirty). The situation becoming very serious.

    I learnt much yesterday. I think people should (set) up more comfortable houses for the animals and help them live  peace. We should do our best to protect them, because protecting them is protecting ourselves.