where to take test

(http://ave.cervantes.es/prueba_nivel/registro/test_de_clasificacion.php?origen=webAVE). Someone on duolingo is moving to spain and they started their studies at duolingo
they also did this

Of course, it was not just DuoLingo, though. After completing my tree
(and keeping it golden), I decided to get my hands on anything I could:

Anything!

However, it still all started with DuoLingo...

I know putting my computer in Spanish (in Mexico) is a challenge.

they got c1.4 to c1.7

this is link to post

It is most likely impossible to reach C1 level in 4 months. This means you could hold business meeting.

¿Qué tal tu español ahora? Ya no hablas en inglés?

well he shows a copy of his test scores... He/She might be really good with languages seems like they were really into it.