阅读短文，把A-E五个句子填入文中空白处，使短文内容完整，正确。
Life in the 21st century will be different from that in the 20th century, because many changes will take place in the new century.    ?
First, the population is growing very fast. There will be more and more people in the world and most of them will live longer than before.       , and there will be at least one in every home. And computer studies will be one of the most important subjects in schools.
Second, people will work fewer hours than they did in the 20th century, and they’ll have more free time for sports, watching TV and traveling.    . And more people will go to other countries for holidays.
Third, there will be changes in our food, too. People will use more land to build new towns and houses.     . Maybe no one will eat meat every day, instead, they will eat more vegetables and fruit. Maybepeople will be healthier.
Last, work in the future will be different, too.      . Because of this, many people won’t have enough work to do. This will be a problem.

A: Computer will be much smaller and beautiful B: And what will changes be C: Traveling will be even cheaper and easier D: Robots will do dangerous and hard work E: Then there will be less room for cows and sheep, so meat will be more expensive