"Next Stage English Grammar and Usage Problems ☆ (4th EDITION) ☆ Conquest of 218 Frequently Appearing Points in Entrance Exam English" I bought this in high school, but I barely used it. I only looked at the first few pages. The CD has been removed from the perforated line. Also, it has been opened. I've looked it over briefly, but there are no markings. I apologize if I missed anything. Please check the photos for the condition.