Books will only be on computers,not on pater.There will be fever people.：知识只出现在电脑上,而不是报纸上.那将有疯狂的人群.
There will be less free time.People will use the subways less.There will be more pollution.Cities will be very big and crowded.：空余时间将会更少.人们会更少地乘坐地铁.将会有更多的污染.城市会变得很大、很拥挤.