Profound changes have taken place in people's lives in the past 20 years.
I n the past, people kept in touch with relatives or friends mainly by sending letters . And sometimes they can even communicate with each other by asking someone to send the messages. They can only listen to the radio for news and see other program on TV.
In the recent time, some families are wealthy enough to send their children to school in their own cars. More and more people live in big and bright apartments with several rooms.
In a word , people have live a better life than before.