No matter how much you pay to go to an academy or take online lectures, it is not easy to improve your English speaking skills if you do not memorize sentences naturally by mouth. The creator of this app acquired both English OPIc, TOEIC Speaking, and Chinese OPIc AL through an automatic sentence memorization program. Based on test takers' experiences, effective language learning methods have been implemented through this app. All English sentences in a total of 14 books related to OPIC, Toss,