Life in the 21st century will be different from life in the 20th century,because marly changes will take place in the

　　Life in the 21st century will be different from life in the 20th century,because marly changes will take place in the new century,but what will the changes be
The population(污染) is growing fast.There will be more and more people in the world and most of them will live longer than before.Computers will be much smaller and more useful ,and there will be at least one in every home.And computer studies will be one of the important subjects in school.
　　People will work fewer hours than they did in the 20th century,and they will have more free time for sports ,watching TV and traveling.Traveling will be much cheaper and easier.And many more people will go to other countries for holidays.
　　There will be changes in our food ,too.More land will be used for building new towns and houses.Then there will be less room for cows and sheep ,so meat will be more expensive.Maybe no one will cat it every day ,instead they eat more vegetables and fruit.Maybe people will be healthier.
　　Work in the future will be different,too.Dangerous and hard work will be done by robots.Because of this ,many people will not have enough work to do.This will be a problem.
1.People may not have as much ____ as they did in the 20th century .
　　A.fruit　　　　　 B.milk　　　　　 C.bread　　　　　　 D.meat