The workbook has no writing in it, but the answer key has a few pages with markings from a highlighter. I would appreciate it if you could understand this. NEW TREASURE Grammar Workbook Stage 1, Third Edition with answer key. - Title: NEW TREASURE Grammar Workbook - Edition: Third Edition - Stage: Stage 1 - Publisher: Z-KAI - Answer Key: With answer key Junior high school, integrated junior high and high school, New Treasure, English, cram school, reference book