Hi,
I have just started your trial subscription and found the lessons are easy and fun, but I think it's gonna be more useful if you put more advanced topics, such as business, economy, ecology, science, engineering, medicine, etc.
I simply would like to build more vocabuluary in various fields so that I can easily read English news papers and magazines and enjoy English TV shows as well.
Also, some slang, phrases, and proverbs would be helpful.
Thanks!
