求助英语~!Shanghai is the largest city in China. About eleven mi

求助英语~!
Shanghai is the largest city in China. About eleven million people make their homes in Shanghai and its suburbs. This enormous city spread out along the banks of the Huang Pu River, which flows into the mouth of the Yangtze River about fourteen miles north of here. Large oceangoing ships travel to Shanghai by way of the Yangtze and the Huang Pu.
Shanghai was a small, unimportant city until 1842, when China lost a war with Great Britain. The British realized that Shanghai was in an excellent location to serve as a seaport for the densely(稠密地) populated Yangtze River Plain. They forced the Chinese to allow English trades to settle on the wastelands outside the city walls. Later, French, American, and Japanese trades also came to Shanghai. The foreigners built whole new sections of Shanghai, including homes, stores, factories, and office buildings. Thousands of Chinese poured into Shanghai in search of jobs. Most of them settled in the old part of the city. As time passed, Shanghai became one of the busiest seaports in the world.
56.According to the passage, the population inside the city of Shanghai is ________.
A.eleven million B.less than eleven million
C.more than eleven million D.about eleven million
57.The Huang Pu River is connected with __________ at a spot about fourteen miles
_________ of the city.
A.the Yangtze River … north B.the city …north
C.the mouth of Huang Pu River … north D.the Yangtze River …south
58.Before 1842, the Yangtze River plain was _________.
A.very developed B.densely populated
C.at a war with Great Britain D.a small, unimportant city
59.A lot of Chinese came into Shanghai to _________.
A.visit the city B.trade with foreigners
C.build one of the busiest seaports D.look for jobs