根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
Over the last 25 years, British society has changed a great deal – or at least many parts of it have. 71 . Ideas about social class – whether a person is “working - class” or “middle - class” – are one area in which changes have been extremely slow.
In the past, the working-class tended to be paid less than middle-class people. The typical working man would collect his wages on Friday evening and then, it was widely believed, having given his wife her "housekeeping", would go out and squander the rest on beer and betting.
