What does the following group of words show us as regards the ma

What does the following group of words show us as regards the main sources of new words? soy milk, family movies, telequiz, Watergate, open university
【正确答案】：

(THESE WORDS SHOW US THAT) SOCIAL, ECONOMIC AND POLITICAL CHANGES BRING ABOUT AN INCREASING NUMBER OF NEW WORDS.

【题目解析】：(These words show us that) Social, economic and political changes bring about an increasing number of new words.这些词告诉我们，社会、经济和政治的变化带来了越来越多的新词。