The future is coming! All over the world there are many new ideas for new places to live and work in. Some of them will be in the sea! They will be very big and lots of people will live and work in them. The Americans are planning to build a town called Atlantis City. It will be in the sea, about five miles away from the land. But the most exciting idea comes from Japan. It is Aeropolis. Aeropolis will be a _ sea city, with parks, schools, a hospital and an  airport ... And it will move ! It will travel slowly around the world. There are just two problems. Aeropolis will cost a lot of money to make. And for people who get seasick, it won't be much fun. Aeropolis will cost a lot of money to make means "  _  ".
Aeropolis will be very cheap to build People will spend much money building Aeropolis It will take little money to build Aeropolis To build Aeropolis will cost little money