This will depend on the admissions tutors decision, but they will look for two closely related subjects. You will also need relevent A-levels. In terms of assessing your potential for an academic programme of study, it is likely they will take your first year results in to consideration. If there are any core modules in the first year, you might be able to do these in the second year. Contact the Universities in which you are interested. They might invite you to an informal interview or an Open Day.