Witam
Prosze o sprawdzenie kilku zdań czy dobrze rozpoznałem zdania pod względem czasów.
It was started in 1968 by the US government, but at first it was used mainly by scientists. Past Simple
In fact, the Internet has been successfully used by people to find lifelong partners. Past Perfect
Since 1990, when the World Wide Web was created, it has changed
the world, and its uses are growing every day. Present Perfect
Students can find some educational aids to their homework. Present Simple
On the internet you are anonymous and you don't know who you are talking to in the chat rooms. Present simple
I'm a great believer in the Internet. Present Cont.