—_____ swim in the river?

— oh, no. Our teacher told us ____ here. It’s dangerous.

A. Why don’t; not swim     B. Why not;   not to swim

C. Why not; don’t swim           D. Why don’t;  don’t swim

In the middle of Jiangsu province, Yangzhou is an important city in the economic circle of the Yangtze River delta(三角洲). It is m  【小题1】 up of three cities of Baoying, Gaoyou, and Yizheng, three districts of Hanjiang, Guangling and Jiangdu. It has an area of 6,638 square kilometers and a population of 4.6 million, i  【小题2】  the central area of 1,100 square kilometers with a population of 1.31 million.
Yangzhou is a cultural city with a long history and rich c  【小题3】. It has a long history of about 2,500 years since King Fu Chai of Wu dug Hangou and built Hancheng. There were three g 【小题4】 times in the history of Yangzhou. It took shape in the Han Dynasty, developed in the Tang Dynasty and reached its top in the Qing Dynasty. A number of politicians, writers and a 【小题5】 such as Li Bai, Du Fu of the Tang Dynasty and Ouyang Xiu and Su Dongpo of the Song Dynasty all served as officials or went sightseeing there and l 【小题6】 many poems describing the beauty of Yangzhou. "Eight eccentrics of Yangzhou", Yangzhou school and Yangzhou opera all enjoy special qualities. In h 【小题7】, Yangzhou was a famous and open city. In the Tang dynasty, it is the biggest city in Southeast China and one of the four ports(港口) that conducted economic and cultural exchanges with other c 【小题8】. Over 10 thousand foreign businessmen lived in Yangzhou then. Master Jianzhen went eastward to Japan to s【小题9】 China’s culture.
Yangzhou is a friendly and beautiful city suitable for people to live in. Such famous well-known sayings as “In this flowery March journeyed south to Yangzhou”, “The green city is Yangzhou”, “Only Yangzhou is suitable for people to l 【小题10】 in” give true expression to Yangzhou. In 2006, it was awarded the United Nations Habitat Award, the highest prize in the area of global habitat.