"AP in international schools is a subject, not a language test. AP is a prerequisite course for American universities. High school students who want to study in the United States usually start their studies in Grade Two and Grade Three. Students' AP test scores are a necessary condition for applying for American universities, and credits can also be converted into university credits. You can apply for graduation in advance after completing the credits, which can save time and tuition. "E means that the score is poor, which means that the score is 100 and the score is below 50.