Here are a few website you may find useful:

 

Book your theory & Hazard Test oline

Practice Hazard Perception online

Highway Code

Get an app for you mobile or tablet for android, Ipad or Windows so you can practice anytime.

When you pass your test seriously consider taking the Pass Plus course  to develop your driving further. If you are in Wales go to the PASS PLUS WALES site for details. Elsewhere in the UP go to Pass Plus UK for more details.