This page is for our students

Dear EstudioE (ex)student,
You know our codes and we know your interests. In this site, you will find tasks, stories and whatever you suggest to have a new English dosis even if you only have a minute free per week. Thank you for your support! Lía and the team.-

Sheer

What does "sheer" mean? The word appears 4 times in teh picture. Referring to a 230-page project, in context an American would say/write:  "...your sheer length of pages alone tells me that you put a lot of effort into this".