45. In line 6, the word “that” refers to _____.(A) cultures (B)climates (C) food (D) area

47. In the passage, the author used “senior citizens” & “physicallychallenged” to _____.(A) illustrate changes in attitude resulted in changes in language(B) request people not to ignore older and disabled people(C) indicate the necessity of inventing new language(D) show positive feelings about older people