I received this from my cousin, but I didn't use it, so I'm selling it. I erased the writing, but there are pages where the erasure marks are quite noticeable. Red sheet is not included. ・Workbook ・Speed Check ・Answer and Explanation This is a set sale. Since it's been stored at home, there may be some scratches on the cover, but the inside is in good condition. I will ship it with bubble wrap and waterproof packaging. Convenience store payment is OK. Holding and dedicated listings are possible.