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.
51 B She succeeded in quitting smoking abruptly.
52 D They were offered nicotine replacements.
53 C It is encouraging.
54 B needs some practice first.
55 A They find it even more difficult.