・DUO 3.0 (2011, 45th printing) ・DUO 3.0 CD for Review ・Speed Reading and Listening: English Vocabulary Advanced 1100 ver. 4 (2014, 3rd printing) ----- Solidify the basics of English vocabulary and idioms with example sentences using DUO 3.0. Also supports listening and reading aloud training with the CD for review. Advanced 1100 covers vocabulary for difficult universities, high TOEIC scores, and advanced learners. From basic to advanced to upper-level, it's a set that can be used for a long time.