Here is paragraph 1 again. Click on the video below to see the teacher make corrections.

'Discuss the advantages and disadvantages of a global one-world language, giving examples.'
Nowadays, everyone learns English. It's very important. Because lots and lots of people need to communicate with other people who don't speak the same language, so it's a very hot topic. I want to talk about this problem and tell you what we can do about it. The first thing is people around the world now communicate by the internet. But when people communicate they must have a language. Right now, that language is English. If we don't have a common language, then people will not be able to do business or co-operate with studies.