<p>Essay should focus on why you are going to pursue a certain major course of study. Write re: career plans and preparation for that field of study and career. Cambridge does not like U.S. educated applicants;Cambridge accepts only one or two American schooled applicants per year. Cost is less than U.S. schools,but I do not think that financial aid is available. Typically ECs are not considered unless they relate to preparing you for your intended course of study and/or career.</p>