★ Clean analysis of developers from Seoul National University/Ancient University!
★ April 2020 High School All-new SAT Grammar App Series Part 2 focused on analyzing only grammar items in the national academic evaluation.
★ Realize bottom-up grammar learning by aiming only at the grammar questions of all grades. App for students who miss the grammar questions every time even if they have studied all one grammar book!
★ April 2020 High School All-new SAT Grammar App Series Part 2 focused on analyzing only grammar items in the national academic evaluation.
★ Realize bottom-up grammar learning by aiming only at the grammar questions of all grades. App for students who miss the grammar questions every time even if they have studied all one grammar book!
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