The mock exams are blank answer sheets and unused questions, excluding the Japanese language section. All explanations and answer keys are included. The textbooks have some scratches and stains, but the content is rich as shown in the table of contents photos. I also think the "Thinking Skills Problem Collection" and "Descriptive Problems Solved with Thinking Skills 400 (Social Studies)" and "The Strongest Science Learned Through Essays" that I am selling as other products are good questions for improving descriptive skills. I am also selling many other items related to junior high school entrance exams, so I will offer a discount if you purchase them at the same time.