Once again I need your help. I have a student who is working with the book Switch for 4 Eso from Oxford. It´s the first time i´m working with this book. I usually work with other publishing companies although i have also worked with oxford. However, it´s my first time with this book and I can´t find absolutely anything of help in the web. Could you please, help me? Any material on the book would be great for me.

Thanks in advance.