20. (A)A peaceful setting. (C) To be in the right mood. 　　(B) A spacious room. (D)To be entirely alone.

26. 　　Questions 26 to 29 are based on the passage you have just heard. 　　(A)The whole Antarctic region will be submerged. 　　(B) Some polar animals will soon become extinct. 　　(C) Many coastal cities will be covered with water. 　　(D)The earth will experience extreme weathers.