1. Certainly cars will fly in the future, but they will not be named cars.
2. I definitely don't believe this statement, because it's difficult to change man' s nature.
Maybe in some extraordinary situations it can take place, for example in the space or on another planet .
3. Of course, people certainly will travel to the moon in future.
4. Probably some difficult work will do robots, but they definitely can't think for people, so they surely can't do absolutely all work for people.
5. Probably people will live long, even more than 150.
6. I don't think so, because the balance of water woun't change if people don't make harm to nature. Even in our days there is a lack of water in some regions of the Earth.
ex2
1 People will probably find new methods and remedies of curing AIDS.
2. New discoveries will be definitely done in the fields of astronomy, chemistry and physics.
3. Houses of unknown materials certainly will be built on other planets. Their construction will probably differ from those that are on our planet.