23. The teacher __ have thought Johnson was worth it or she wouldn’t have wasted time onhim, I suppose. (A). should (B). can (C). would (D). must

74. according to the text, how can people from different cultures understand each other better? (A). By sharing different ways of life. (B). By accepting different habits. (C). By recognizing different values. (D). By speaking each other’ s languages.