Kangkang:"I've been there before . It's a beautiful place with lots of flowers and grass.The air is fresh and the water is clean,and you will se bees and butterfies dancing."
Kangkang:"The flowers and grass have gone! The water is so dirty.It smells terrible ."
Kangkang:"there are several chemical chemical factories pouring waste water into the stream."
大家帮我把这些句子改为间接引语啊