What will the world be like in the future? In ____ idea, a lot of what we see in science fiction(科幻) films ____ true.

    I think there will be flying cars for people to park on—top of ____ , lf this happens, there won't be any more traffic jams! I believe that ____ houses will be green, as we'll only use the energy ____ wind and solar power (太阳能). In the future, I think robots will do most of our ____ , so life will be easier. There will be robot teachers too, and children will ____ laptop computers(笔记本电脑) to school instead of books. No one really knows ____ will happen. All we need to do is to believe in ____ . After all, as Albert Einstein once said,”I never think of the future, It comes ____ enough."