1 . Many people love to listen to music while driving. Thanks to the world’s musical roads, drivers now don’t need to turn the radio on.     1    

A musical road can create music when a car tires go over grooves (凹槽) on the road. To produce beautiful music, drivers must pass over the grooves at a certain speed. Signs often tell drivers the right speed.

    2    . Since the mid-1990, musical rads have appeared in many different countries.     3    . To warn drivers to the incoming music, all the roads are marked by colored musical notes that are painted on these roads. Drivers can decide whether to go over the grooves or not because they are set on the side of the road.

In Hungary, there is a musical road in honor of one of the country’s most popular musical performers — Laszlo Bodi. Bodi was the lead singer for the band Republic.     4    . Sadly, Bodi passed away in 2013. But people still remember him as there’s a road where drivers can hear 30 seconds of the Republic song “Road 67”.

    5    . In Indonesia, a road plays the first six notes of “Happy Birthday”. The fifth note is a little out of tune, though. This “mistake” keeps drivers awake and aware, and it has reduced the number of traffic accidents. Such is the power of music and musical roads.

A Fuxing train departed from Nanning City, the capital of south China’s Guangxi Zhuang Autonomous Region on Thursday morning,     1     (mark) the launch of high-speed rail service in the karst regions of southern China.

The 482-kilometer railway, which connects Nanning with Guiyang, the capital of Southwest China's Guizhou Province, is designed     2     (facilitate) a top speed of 350 kilometers per hour, reducing travel time from over five hours to about three hours.     3     a major transportation artery (干线) in southern and southwestern China, it will     4     (significant) benefit residents in the mountainous areas and boost       5     (region) ·socioeconomic growth (社会经济增长) along the route, according to China State Railway Group, the national railway operator.

This railway is the first of its kind to be built in either Guizhou       6     Guangxi, both of which are known for their karst landscapes posing     7     obstacle to railway construction. The railway’s construction, which started in December 2017, was a challenge for its architects and engineers because its     8     (plan) route included areas with different geographic     9     (feature), including mountains, valleys and rivers. So far, the operator    10     (announce) three types of service schedules for weekdays, weekends and the peak