Tsukuba University English 15 Years 1. I had written lines and marks on the first two years' worth, but I erased them with an eraser. There are no other noticeable scratches or stains. I purchased the past papers from 2009 and 2010 at an early stage, as I thought they would be harder to obtain compared to the 2024 and 2025 editions. I didn't use them much, as I was planning to use them for this year's second-round exam preparation. Thank you for looking.