Applying for Medicine without A level Biology?

At the minute I'm currently studying Maths, Further Maths, Chemistry and Physics at AS. I know that Maths and Further Maths are generally counted as one for medicine, which is why I'm thinking of dropping further maths at AS and picking up AS biology whilst continuing with maths,chemistry and physics to A level.
For my GCSEs I got an A* in further maths, A in maths (taken a year early), A in chemistry, A in biology, A in physics, A in history, B in geography, B in religious studies, B in french, B in English literature and a C in English language. I was really disappointed with my GCSEs as I had my heart set on becoming a doctor, and my GCSEs aren't good enough- especially the C in english language (resitting on the 3rd November) .

Do I have any shot realisitically of studying medicine at university if I get all As at AS level?