VI. Read the text and answer the questions.

Future Vehicles

People always dream of flying by themselves, and this flying car may be their choice. It is economical because it runs on solar energy. If you cannot drive, it is a wonderful way to fly like a bird. This jetpack uses an engine with two fans to lift you off the ground. Maybe policemen want to have it as soon as possible because it is fast and it can avoid traffic jams. Fans help this flying motorbike stay in the air. This amphibious bus can run on water and land. In countries with a lot of rivers and canals like Vietnam, it is a convenient way to travel. Many countries are starting to use tunnel buses. This bus is spacious enough to carry many passengers and it travels quickly during rush hours.

How can a flying car run?