11. You stand on the ___ then turn on the switch and drive away. It looks like a laptop with 4 wheels.
A. walkcar B. bamboo-copter C. solar-powered ship
12. A ________ is a high-speed transportation system for both public and goods transport.
A. walkcar B. hyperloop C. solowheel
13. A convenient way to go to school is by ________. Just put it on and fly away.
A. skyTran B. teleporter C. bamboo-copter
14. “________” is a type of transport that doesn't need any wheels or railways.
A. Solowheel B. Flying car C. Teleporter
15. When using a ________, you can do anything you like such as reading or sleeping.
A. driverless car B. solar-powered car C. high-speed train