请你阅读短文,并选择适当的单词填空. vegetables    because    going    difficult    longer It's the year 2050 now. Life is very different from life in 2011. There are more people and cars in the world．It's more 1. ________________ for people to find a job．And it's also more difficult for people to ride in the streets．Most people live 2. ________________ because they eat healthier food. Noboy eats meat very often 3. ________________ more and more people know it's important to have a healthy diet. They eat more 4. ________________ and fruit. They don't have to work long hours. They can surf the Internet at home. They also have more free time for sports and 5. ________________ for a trip.