Chose *****y A Levels and now i'm stuck.

I take English, Economics, Geography and Critical Thinking (I know the last one doesn't really count but our school makes us do it) for A Levels. I want to do the social science type subjects, or Economics but I don't have the right subjects for it. My parents have said that if I don't go to uni next year, they won't pay for it anytime afterwards so I need to apply this year. It's getting so late and I don't know what to take - I'm not a fan of the humanities subjects but I feel like that's all I can do. Any subject suggestions? Ideally I'd like to go to a top 7 uni (after Oxbridge) and preferably somewhere in London.

You don't need sociology A level to study social sciences at degree - and while critical thinking isn't usually included in any university offers the content is great preparation for social science degrees.

Some Economics courses will accept applicants without A level or AS level maths - or will have lower entry requirements for combined/joint honours courses (like http://www.kcl.ac.uk/study/undergraduate/courses/political-economy-ba-bsc.aspx for example)