Pretty much anything except in a languages area (that includes English). You might not be able to apply for some Biology based courses (mine did specifically ask for Biology), but not all, as some would find Chemistry relevant.
Obviously, you could study any of your subjects at uni. You could also go for something like Economics or Politics, any of the social sciences. Perhaps something involving engineering. You could even do Art, although it would be a complete change of direction, because most unis require you to take a foundation year anyway.
What are your interests?