試題詳解

48. Which of the following statements is true?
(A) Unconventional proms have been organized since the 1960s.
(B) In the 1980s, proms were held in local churches for teenagers to attend.
(C) Proms have become a significant event in American high schools since the 1930s.
(D) In the 1890s, high school proms were all-night social events for some American families.