1. Nanjing is a morden city with less air pollution, where there are many flowers and plants, and Purple Mountain.
2. Xuanwu Lake Park with mountains and water is good for walking.
3. Subway is under construction.
4. Most people are living in highrises close to their friends.
5.The boiled chicken with salt is very delicious, and other mementoes are also attractive.
如果单单这几个句子连起来是一篇文章则需要将句子之间的连接以句型做适当调整.