题目内容：

The "One Belt One Road" strategy proposed by President Xi Jinping has drawn public attention to 1. oldest and longest trade route—Silk Road. The term in a narrow sense refers to an ancient overland trade route 2.form) in the Western Han Dynasty. This route stretched 4,350 miles from Chang's an to western China, central Asia, and even to Europe,3.(enable) theses regions to have better communications in diplomacy, business and culture.

China was the first country in the world to breed silkworms and produce silk fabric. This craft skill reached a 4.(fair) advanced level in the Zhou Dynasty. As a major export to Europe, "silk" was used to name this great route by a German geographer. China's silk5.(introduce) into western countries through this old trade route. People were6.(familiar) with his product at the beginning, and made many guesses at7.it was produced. According to the record, the idea that silk was picked from trees was widely accepted by folks in Europe.

8.(garment) made of this fabric were always best sellers, and were considered a social status symbol. Ever the gorgeous Egyptian queen, Cleopatra, was also a big fan of the silk. This fascination led to an increasing demand 9. this product, and promoted the10.(develop) of this trading route.