To quote one of my mentors-Francis McBeth- if they can't read through it (maybe roughly- but read though it start to finnish) then you have not taught them the skills they need to play the piece. So read it and fix it, clean it, or go back and teach them the skills they need to know to be able to play the music.
Don't be like so many of our kids today, they WANT to do great things but they don't want to do the Work necessary.