语法填空题: No one knows what would happen in the future for sure. 1 we often think of the future and wonder what the world would be like 2 a hundred years' time. Think of space. Perhaps 3 permanent station on the moon will have been set up. Perhaps people will be able to visit the moon 4 tourists. Cheap rockets for space travel will have been developed, 5 (permit) long journeys throughout the solar system. 6 that time comes, people will be taking holidays in space 7 visiting other planets, such as the Mars Colony and the Venus Exploration Outpost. Scientists of the future will almost certainly find other ways to make life last 8 (long). 9 probably will find cures for most diseases. Hospitals will probably have "body banks" that can give you almost any new part you need to keep on 10 (live). People of the future may live to be a lot older than 100 years.