17. What is the topic of the text?A. How languages die.
B. Why languages develop
C. How languages shape culture.
D. Why languages are important,
E. Why we have different languages



18. What is the main cause of the phenomenon?
A treasury of myth and poetry,
B. A precunous and uncertain future
C. A unique knowledge of the planet
D. The use of globally dominant languages
E The development of the original language



19.What will happen if the phenomenon occur
A Several cultures will disappear
B. The languages will develop
C. The myth and poetry will exist.
D. Dominant languages will vanish
E Natives will speak original languages



20. What do language conservationists do to
overcome the problem?
A Promote dominant languages,
B. 'Stop using original languages
C. Improve widely known languages
D. Revive and document the languages.
E. Motivate official states to speak differer​