49. According to the article, who had played a major role in promoting the business casual style?
(A) Company owners or administrators.
(B) White-collar office workers.
(C)Government agencies.
(D) The clothing industry.

45.(A) booming (B) frightening (C)collapsing (D) shrinking

46. What is the main idea of this article? (A) The fashion trend from the 1950s to the 1990s in the U.S. (B) What to wear and not to wear for Americans on Casual Friday. (C)Where and how the business casual style started and became popular. (D) Why some people hope to go back to a more traditional look of their office outfit.

47. Which of the following clothing is believed by many to be the very first business casual attire? (A) Khaki pants. (B) Aloha shirts. (C)Blazers and sweaters. (D) Dress shirts.

48. What is the purpose of Casual Friday when it began in the 1950s as some people say? (A) To comfort angry workers who are tired of wearing formal clothing all days a week. (B) To boost employees’ spirit and pump them up for their work. (C)To encourage workers to relax in the office so that they’d take days off less often. (D) To be a pioneer and example in office fashion for the rest of the country.

50. Which of the following is true? (A) Americans wore business casual clothing all days of a week by 1970. (B) The trend of business casual style started in California and then spread to Hawaii. (C)Nowadays people in the U.S. have gone back to more formal, conservative and elegant office attire. (D) Aloha shirts became popular because of numerous ads showing men and women wearing them.

26. You’ve got to be _______ enough to make necessary changes at any time when needed. (A) flexible (B) literary (C) manual (D) persistent

27. We were lucky that the train came on _______ even though it rained heavily. (A) project (B) reaction (C) schedule (D) waitress

28. When I _______ the trip to Tom this morning, he wanted to join it right away. (A) increased (B) mentioned (C) observed (D) wandered

29. Please use _______ paper to save the trees and protect the earth. (A) circulated (B) delivered (C) horrified (D) recycled

30. I’m ready to face a great _______ in my life. And I know I can win. (A) alphabet (B) approach (C) calendar (D) challenge