**the importance of learning English.**
Are you writing a short speech or something similar? It feels like this part is important and should be written based on proper capital word usage guidelines. It would have helped to properly format this part for vocal emphasis when being read to the audience. Speeches have emphasis markers, which this presentation severely lacks.
although it can not be the most spoken language in the world, but
This is irrelevant to the discussion since you are discussing the importance of the English language in general. comparisons with other languages used internationally is not a consideration as that alters the discussion topic.
The written format can use some work. I read at least 3 paragraph divisions here. The seperations will help deliver proper pause points for listening comprehension , if delivered as an oral speech.