Imagine what would happen if these things came true.make two or three conditional sentences for each siuation . 1)all the telephone lines in the world go dead 2)thehe is no internet 3) all the computers in the world break down 4) everybody speaks the same language 5)you don`t have to go to school 6)someone invents a time machine
2. At last teenagers would would come off the Internet and would start study better. The progress of classes increase.
3. People would start reading paper books, often visit libraries. There would be more educated people in the world.
4. It would be easer to understand each other. But people stop learning foreign languages, and this is not good.
5. In my oppinion, it's very bad. Children must go to school, to get new knowlage. If they don't do it, they would be more stupid.
6. It isn't very good, it's very bad. If a man amend something in past, it would be completely different world.