A-level and GCSE question here please help?

Generally you have to get at least a C in Maths and English to get into A-Levels, as this is what collages and sixth form's often ask for, even if you do not plan to take the subject for A-Level. It may not be like this everywhere, I would contact the place you want to do your A-Levels to check this, as it is the only way to know for sure what they require.