試題詳解

31. What is the main idea of this essay?
(A) The number of the world languages is about 5,000.
(B) There are at least fifteen language families which are the ancestors of modern languages throughout the world.
(C) English is spoken in many countries and is the second most widely spoken language in the world.
(D) A very large majority of the people in the world speak languages which belong to only one family.