Pages 71 to 128 are clean.  50 of the first 70 have writing. You could erase some or use notebook paper for those lessons.

The BJU Press Handwriting 4 Student WorkText (2nd Edition) 268599 is a workbook published by BJU Press in 2009 for elementary school students studying handwriting and penmanship. It is a paperback book written in English, focusing on literary studies and language study. Designed for beginner to intermediate levels, this textbook provides students with practical exercises to improve their handwriting skills. With a focus on the subject of handwriting, this book is a valuable resource for students looking to enhance their penmanship in an educational setting.