Cook Islands:
English (official), Maori
Costa Rica:
Spanish (official), English spoken around Puerto Limon
Cote d'Ivoire:
French (official), 60 native dialects with Dioula the
most widely spoken
Croatia:
Croatian 96%, other 4% (including Italian, Hungarian,
Czech, Slovak, and German)
Cuba:
Spanish
Cyprus:
Greek, Turkish, English
Czech Republic:
Czech
Denmark:
Danish, Faroese, Greenlandic (an Inuit dialect), German
(small minority)
note: English is the predominant second language
Djibouti:
French (official), Arabic (official), Somali, Afar