At present time, the role of English as a global language is indispensable. It is worth noting that the prevalence of English worldwide might has its negative effect. In my opinion, English's dominance can be viewed in positive light.
Good introduction :)
In addition, people nowadays are likely to gain exposure toof foreign cultures with the help of English.
Well ... you present several reasons in the first body para to support your view point and your examples do not sound very specific. However, this task requires you to give specific examples to support your reasons. So, taking the time management factor into consideration, I'd like to advise to you to limit your reasons to just one and support it with a good example. That would help you earn good marks.
You have excellent writing skills and I think you can go for a pretty good band :)