26. In communication, a smile is usually ___________ strong sign of a friendly and _______ open attitude. (A)the, / (B)a, an (C)a, / (D)the, an

73. Which of the following can be a reason for the popularity of Lomborg’s books? (A)Some big businesses intend to protect their own interests. (B)The book challenges views about the fine state of the wirld. (C)The author convinces people to speak comforting worldviews. (D)Industry–funded media present confusing information.