Student Workbook to Accompany Torres and Ehrlich Modern Dental Assisting

I bought this book that was listed in very good condition. the 1st 31 pages where missing and a fair amount of writing on the pages thru out the book. Thirftbooks description of Very Good: A copy that has been read but remains in excellent condition. May have writing on the inside cover but pages are unmarred. Thinking it should have been Acceptable: A readable copy. Pages can include considerable notes in pen or highlighter, but the notes do not obscure the text.

Every single chapter- the actual worksheets are missing. Waste of my money and now I have to buy another