<p>I would say it is probably not a good idea (though I don’t know where you are applying), you really should take the same language for all four years of high school. Again I recommend you take those exams to prove your skills, but it is not necessary. Personally I consider somebody proficient when you can comunicate with native speakers. Yes, you can list that you are fluent, but make sure that you are truly fluent before you put that on your resume.</p>