9.What is the greatest achievement of the 20th century?
In my opinion, the best achievement of the 20th century is the Internet. People use it everyday at school, at work. For example, when they want to find some necessary information about something or if they are interested in the news. You can find there everything, some people think that also a friend. You have a chance to talk to somebody there. It can be a person from all over the world. Moreover, the Internet is really useful in the everyday life. You can stay at home but do the shopping. A lot of people pay the bills using the Internet. As well as this, you can send the message to another person, but you don't have to go to the post office. Nowadays, this is a good thing to communicate with somebody. In addition, the Internet is still developing.