Don't worry about them, they're just to get you thinking like a referee.
Work through the questions without looking at anything, just from memory. Then have a read through the laws and go back to have another go at the questions filling in anything you may have missed.
On your course you'll be taught the full laws of the game, no prior knowledge is assumed, although it does help to know the basics and have some knowledge of the game.
Hope that helps and good luck with the course and your refereeing career!