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As they say in the sciences, which you seem to like, your sample size seems to be much too small. Most colleges with any degree of selectivity require 2 years of a foreign language. And at the top schools is a virtual certainty. MIT does. Duke wants 3 years. Many others expect at least two. Before you decide one is enough, I suggest you contact admissions at some of the schools you think you might want to attend and see what they tell you.</p>