四級(jí)仔細(xì)閱讀Passage One
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46. A) Britons have cut their spending on it
47. B) It will remain gloomy.
48. C) Luxurious features add much to the price.
49. A) They are particular about the quality of toilet paper.
50. D) Environmental protection is not much of a concern when Britons buy toilet paper.