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) 1,100 kg and can carry an additional load of 200 kg per flight.     5    (power) by a BMW 1.6 L engine, the car-plane has an effective power output of 140 HP. The estimated travel range of the vehicle is 1,000 km       6     the flight consumption is 18 liters 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 office, 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.

China, which takes pride in inventions in ancient times, has once again demonstrated its     1     (able) to change the world with its “new four great inventions”: high-speed railways, electronic payments,     2     (share) bicycles and online shopping. The “new four great inventions” are all related     3     China’s high-tech innovation(创新), which has improved the quality of people’s lives. “My wallet is no longer in use. I can buy and eat anything     4     I want simply with a tap of my phone,” said Lin Jinlong,     5     overseas Chinese student from Cambodia,     6     (add) that “even pancake sellers are using Alipay (mobile payment). We can also order food at home, which is super convenient. If I     7     (be) at home in Cambodia, I would have to go outdoors.”

The bikes themselves are not new, but the operating model of bike-sharing is based on satellite navigation system, mobile payment, big data and other high technologies. It is     8     (increase) clear that China is innovating and no longer copying Western ideas. This is partly because China skipped over the PC age and went directly to mobile. China has the     9     (large) mobile use in the world.

In terms of the “new four great inventions”, Charlie Dai, principal analyst of American market research company Forrester, said, “These products and services     10     (improve) the customer experience so far, improving national and global economy at the same time”.

Adam is a freshman at senior high school. Going from junior high school to senior high school is     1     really big challenge. The first week was a little     2     ( confuse) for him. First, he had to think about which courses are     3     (suit) for him. The adviser recommended that he should sign up for     4     (advance) literature because he likes English and he's good at it. Second, he had to choose extra-curricular     5     ( activity). He tried to join the school football team    6    failed, so he     7     (join) a volunteer club     8     ( help) the homeless in the community. Third, he's a bit worried about keeping up with the other students and it is quite difficult     9     him to get used to all the homework.     10     (study) hard isn't always fun, but he will be prepared for it.