题目内容：

The world-known Silk Road across the Eurasian Continent is a friendship bridge 1. (link) the Europe and Asian people. It is one of the most important theme tourist routes in the world and the most 2. (value) tourist product in China. From the time Zhang Qian 3. (open) up the world-famous Silk Road during the Han Dynasty, until the collapse of the Yuan Dynasty, it enjoyed 4. history of about 1,600 years.

Silk Road with 5. (it) 2,000 years history has witnessed the historical changes and the progress of cultures 6. (exchange) between China and the Western countries. The section in China, many ethnic cultures 7. (include), is also as a jade belt. The peoples of these ethnic groups such as Mongolians, Huis, Uygurs, Hazaks have maintained their unique traditions and cultures, living habits and religious beliefs,8. from the soul of the Silk Road and attract many tourists to visit. In fact,9. the Silk Road in the northwest of China, there are another two trade roads in the southwest of China and by sea, which also contribute 10. (great) to the development of the world. They are called the “Southern Silk Road” and the “Silk Road on the Sea”.