Chad
French (official), Arabic (official), Sara (in south), more
than 120 different languages and dialects
Chile
Spanish (official), Mapudungun, German, English
China
Standard Chinese or Mandarin (Putonghua, based on the Beijing
dialect) (official), Yue (Cantonese), Wu (Shanghainese), Minbei
(Fuzhou), Minnan (Hokkien-Taiwanese), Xiang, Gan, Hakka dialects,
minority languages (see Ethnic groups entry)
note: Mongolian is official in Nei Mongol, Uighur is official in
Xinjiang Uygur, and Tibetan is official in Xizang (Tibet)
Christmas Island
English (official), Chinese, Malay
Cocos (Keeling) Islands
Malay (Cocos dialect), English
Colombia
Spanish (official)
Comoros
Arabic (official), French (official), Shikomoro (a blend of
Swahili and Arabic)
Congo, Democratic Republic of the
French (official), Lingala (a
lingua franca trade language), Kingwana (a dialect of Kiswahili or
Swahili), Kikongo, Tshiluba
Congo, Republic of the
French (official), Lingala and Monokutuba
(lingua franca trade languages), many local languages and dialects
(of which Kikongo is the most widespread)
Cook Islands
English (official), Maori