China has changed people’s life with its high-speed rail. Chinese people didn’t enjoy 1.______ (them) for traveling tens of hours by train in the past, but their feelings have changed 2.______ they got the new high-speed trains. High-speed rail in China is designed for speeds of 250—350 km per 3.______ Compared with ordinary trains, the high-speed trains are 4.______ (smart) and more energy-efficient, with more space inside. They are completely researched and developed 5.______ Chinese people. High-speed rail is developing 6.______ (rapid) in China. Now China has the 7.______ (long) high-speed rail network in the world. In recent years, China has successfully 8.______ (export) high-speed rail technology to many 9.______ (country). The Chinese are 10.______ (pride) of China’s high-speed rail.