I have some questions with regard to the liaison between a noun and its first adjective, as well as the subsequent adjectives. I know that in the phrase "des langues étrangères", the "s" makes liaison as /z/. However, I don't know if I should make a liaison for "un étudiant actif étranger".
Should it be
or should it be
Moreover, how about "un étudiant curieux étranger"?