Help me in law paper

i have giving ipcc gr1 from two attempt and nov2013 is my next attempt. In group-1 account is exempted in first attempt but after that every time i am failuar in law paper. my marks in may 13 Cost and fM -62 ,in tax -48

and in law it was 24. Can anyone help me how i can prepar law so that i gets atlist 40 marks in this paper.