A .As these languages become more powerful, their use as tools of business and culture increase.
B .However,he was a frequent visitor to the Catawba reservation in South Carcinoma where he learned the language.
C .Papus New Guines is an extremely rich source of different language,but more than 100 of them are in er of extinction(灭绝).
D .For the rest of us, when a language dies, we lose the possibility of a unique way of seeing and describing the world. E .Some people might want to learn some of these songs by hearts.
F .These languages don’t have many native speakers.