Some description of language proficiency standards here [1]. [1] https://en.wikipedia.org/wiki/Common_European_Framework_of_Reference_for_Languages https://en.

Some description of language proficiency standards here [1]. [1] https://en.wikipedia.org/wiki/Common_European_Framework_of_Reference_for_Languages https://en.wikipedia.org/wiki/Common_European_Framework_of_R...