用方框中所给单词的适当形式填空，使对话通顺、正确。每词仅用一次（每空一词）。

    In the past, the people in Wenling lived a poor . The houses were old and small. Pollution was very serious, and there was rubbish everywhere. The traffic was not convenient, so few visitors came here.

    Now great changes have taken place in Wenling. The environment has more beautiful. The rivers have turned and the sky has turned bluer. There are trees, flowers and grass everywhere. There many large and bright buildings. Many people have their own cars. Every year, thousands of people from all the country come to our city.

    We're sure Wenling will become better and better in the future.