San Francisco is a great city, which was able to rebuild itself after the earthquake that     1     (occur) in 1906.There are so many beautiful old buildings－many     2     (sit) on top of big hills, offering great views of the city, the ocean, and the Golden Gate Bridge. Mission District is the oldest part of the city,     3     used to be a poor area, but now is a centre of art, music, and food. In fact, an art movement called the “Mission School” started here. It     4     (influence) by graffiti art and comic art.

In 1848，America got California     5     Mexico, and gold was discovered near San Francisco. The dream of     6     (seek) their fortune quickly attracted people from all over the world, so San Francisco quickly became a big city. In fact, few achieved their dream of     7     (become) rich.     8     (earn) a living, some opened    9     shops and restaurants, some found jobs on farms, and others went to build the railway.

It is those immigrants from different countries and cultures     10     built America.