King Edward Camp Hill Aplicantee

Hello, I am applying fo King Edward's Camp Hill from a comprehensive school and am wondering what my chances at getting in are with a grade 4 in my mocks in French. It was the worst I did by far and I'm scared it will jeopardize my chances of getting in. On top of that, my grades weren't all too good. If anyone has any reference on grades students their typically achieve I would really appreciate it.