It seems that the cities in the future will have to change. Because the world’s population     , there will be          people in the cities tomorrow.
It may be              for any family to live in a house with land around it. There            enough space for them.              to solve this problem may be the skyscraper city(摩天城). The highest building in the world today is in Taipei. It’s about 509 metres high. The skyscraper cities in the future will be many times          .
In a skyscraper city about 250,000 people will live. Nearly a million people can             in four of these great buildings. Each skyscraper city will have four towns in it and each town will have ten villages. They will live, work and             their free time in them. They won’t need to leave the city             they want to. They will be able to move about in the city by transport controlled           computers. Let’s imagine how the life will be then!

A．has grown B．is growing C．are growing D．have grown

A．many B．much C．more D．larger

A．impossible B．possible C．important D．necessary

A．aren’t B．won’t be C．won’t have D．haven’t

A．A way B．A road C．An answer D．An idea

A．lower B．shorter C．taller D．higher

A．live B．study C．work D．be

A．spend B．cost C．pay D．take

A．until B．when C．while D．unless

A．by B．at C．with D．in