A reference book containing English questions from Osaka University from 2003 to 2022. I haven't used it much, but I've solved the first two questions, and there are pencil markings. They can be erased with an eraser! - Title: Osaka University English: 20 Years [9th Edition] - Publisher: Suken Shuppan - Series: Difficult School Past Questions Series - Contents: Contains questions from 2003 to 2022 - Language: English Thank you for looking.