That Beijing, together with Zhangjiakou,     1     (succeed) in getting the chance to host the 2022 Winter Olympic Games in 2015, speeds up the development of Zhangjiakou City.

Word came     2     the Beijing-Zhangjiakou high-speed railway,     3     (locate) in North China, is currently under construction, and is expected to be completed by 2021 in preparation for the cities to host the 2022 Winter Olympics. Starting from Beijing North Railway Station and heading west through the Great Wall three times in the capital’s territory, the project is a big challenge,     4     designers say the explosions needed to dig the tunnels will not have an impact on the structure. The line has a     5     (long) of 174km as a double tracked passenger dedicated line(双轨道乘客专线), with ten stations situated along       6     (it) route. Having a     7     (totally) investment of 31.17 billion yuan ($5 billion), the trip between the two cities will only take 40 minutes, with the train     8     (travel) at an average of 250 km/h. According to the plan, the high-speed railway will build two branch lines — one is to Yanqing Station and the other     9     Taizicheng of Chongli, where the Olympic village lies. The full railway, which includes a 70-kilometer section through Beijing, will be completed in one and     10     half years.

All-out search and rescue efforts were underway on Monday     1     a China Eastern Airlines aircraft     2     (carry) 132 people crashed in South China’s Guangxi Zhuang autonomous region in the afternoon — ending China’s 12-year air safety record.

Flight MU5735 left Kunming, capital     3     Yunnan province, at 1:11 pm and     4     (schedule) to arrive in Guangzhou at 3:05 pm. Air traffic controllers lost track of the plane over Wuzhou, Guangxi.     5     flight was carrying 123 passengers and 9 crew members. In the afternoon, fire and rescue teams discovered aircraft debris scattered in the forest. No     6     (remain) of passengers had been found yet.

President Xi ordered swift action to be taken     7     (find) out the cause of the crash     8     to strengthen the safety of the civil aviation sector (航空业) to ensure the     9     (absolutely) safety of the sector and     10     (people) lives.

China speed is amazing the world. While other countries are struggling to make high-speed railway a reality, the China Railway Corporation     1     (engage) itself in laying down over 25,000 km of high-speed tracks over the past ten years — accounting for roughly two     2     (three) of the world’s total length of high-speed rail lines.

Up to now, China has built the largest high-speed rail network worldwide. The     3     (impact) go well beyond the railway sector. It also includes changed patterns of urban development, increases in tourism, and growth of regional economy.     4     (boost) regional integration and economic growth, plans for high-speed maglev (磁悬浮) lines with trains traveling at a speed of 600 kph or more are taking shape in more Chinese cities.

“China started operating its first maglev railway more than a decade ago.     5    , for lack of critical technologies at that time, we only concentrated on conventional high-speed rail, said Sun Zhang,     6     is a leading railway specialist. But the research team     7     (lead) by him, tried their best to learn advanced technologies from foreign countries and eventually developed our own innovations, greatly     8     (transform) our way of life.

There is no denying that all of these achievements make our travel convenient and     9     (rely), especially during “Chunyun”, an annual test on the China’s transportation system. Thanks     10     “China speed”, people can go back home for reunions with families and friends in time.

Pan Lin, 22, experienced her first ride in a self-driving taxi in Changsha, China's Hunan Province. “I made     1     appointment in the app and the taxi arrived in about 10 minutes.” said Pan. “The taxi drove very well by    2    (it)”, said Pan after a 10-minute-long test ride.

The self-driving taxi,     3    (operate) by Hunan Apollo Intelligent Transportation Co.Ltd., is named Robotaxi. On April 21, the company said that a group of 30 self-driving taxis had been put     4    use in the city and users can call one for a free ride.

“The in-car touch screen can     5    (clear) show barriers (障碍物), passing vehicles, intersections, traffic lights and the remaining (余下的)     6    (distant).” said Cheng Li, director of the test department of the company. The company started testing self-driving taxis in the second half of last year and they    7    (collect) a lot of test data since then.

In April 2018, China allowed local governments to arrange road tests for intelligent connected vehicles (ICVs),     8     cover different degrees of self-driving. An increasing number of cities,     9    (include) Beijing, Shanghai and Chongqing, have issued (发行；发表) license    10    (plate) for road tests of ICVs.

AirCar is the latest generation flying car     1     transforms from road vehicle into air vehicle in less than 3 minutes, Useful for leisure and self-driving     2    (journey), the vehicle can go from driving to flying mode with the click of a button. The fifth generation flying car designed by Professor Stefan Klein     3     (complete) two flight tests at Piestany airport in Slovakia so far.

The two-seat AirCar,     4    (weigh) 1,100kg, can carry an additional load of 200kg per flight.     5    (drive) by a BMW 1.6L, engine, the car-plane has an effective power output of 140HP. The estimated travel range of the vehicle is 1,000km and the flight     6     (consume) is 18 liters (升) per hour. AirCar can transform from a ground-based vehicle to aircraft with its speed     7    (reach) up to 200 km/h. But most importantly, the stability and controllability of the AirCar is     8    (access) to any pilot.

“With AirCar you will arrive at your destination     9     the trouble of getting a ride to airport and passing through commercial security. You can drive your AirCar to the golf course, the offices, the shopping centre or your hotel and park     10    in a normal parking space,” said Anton Zajac, Klein Vision’s co-founder，investor and pilot.