uel, we can make happiness a 28. What is the attitude of Robert Putnam and Whippman towards today's American society?不赞 A. Confident B. Disapproving C. Unconcered D. Cautious. 29. What does the underlined word "it" in Paragraph 2 refer to? A. Good social relationship. B. Whippman's new book. C. Study after study D. The age of mobile technology. 30. How can we achieve true happiness according to Whippman? A. By attending more parties段 B. By making more friends C. By standing in someone else's shoes. D/ By surrounding ourselves with like-minded people. 31. Why is Christmas Day mentioned in the text? A. To show the popularity of it. B. To demand more similar festivals强洞联 C, To stress the importance of social connection. hid D. To call on more people to join in the celebration.