Our Practise of Snoopy's Chrisstmas

In guitar we have been learning Snoopy's christmas for Festival of the Arts the challenging part of learning this song on the guitar is switching to C,D and G the easy parts for me were probably the verses of the song I really do enjoy this song except it might be a bit to complex for beginners.Back to talking about my practise I couldn't really get much done because my computer kept on freezing and I had to keep restarting.