If you are using areferee.com as a learning tool this site covers everything from the basic to the more complicated questions. I used it and was worried when I did my exam because I would get a lot wrong, the if a gk takes off his shinpad out of the area................. etc but when I came to the exam the questions were more of the basic laws and I breezed through with one question wrong. Use this site then use your book for looking up wrong answers and you will be fine, but as others have pointed out the site is not 100% right so be aware.