谁能帮我翻一句中口的句子啊~~

Shanghai is not only a famous historic cultural city but also one of the most properious centers in China nowadays.We have been seeing fast-changing Shanghai these years.
第一句用not only...but also...
第二句用一个过去完成进行时
这是我修改后的答复，一定行。

Shanghai is a famous historic city of culture, and one of the most properious economic centres as well. We've seen the never-ending changes and improvement of Shanghai these years.

Shanghai is a fame city with its culture in our history and also is one of the most prosperous cities in economy.In these years we see the big changes and improvement with our own eyes.