Life in 30 years will be 31because many changes will take place, but what will the changes

Life in 30 years will be   31  because many changes will take place, but what will the changes be?
The population is growing fast. There will be    32   people in the world and most of them will live longer than before. Computers will be   33  smaller and more useful, and there will be at least one in every home. And puter studies will be one of the important  34  in school.
People will work fewer hours than they are doing now, and they will have more free time for sports, watching TV and traveling. Traveling will be much cheaper and  35 . And more people will go to other countries  36  holidays.
There will be changes in our food, too. More land will be used for  37   new towns and houses. Then there will be less  38  for cows and sheep, so meat will be more expensive. Maybe people won’t eat it every day, they will eat more vegetables and fruit instead. Maybe people will be healthier.
Work in the future will be different, too. Dangerous and hard work will  39  by robots. Because of this, many people will not have  40  to do. This will be a problem. 
【小题1】A. same                    B. difference                C. different      
【小题2】A. little and little     B. less and less              C. more and more
【小题3】A. much                   B. many                   C. more          
【小题4】A. subject                  B. subjects                 C. way                   
【小题5】A. easily                   B. more easily              C. easier           
【小题6】A. for                     B. with                    C. at           
【小题7】A. build                   B. building                 C. to build        
【小题8】A. rooms                  B. room                    C. spaces        
【小题9】A. done                   B. do                      C. be done       
【小题10】A. works enough             B. enough works             C. enough work C