HEEEEEELPPPPP Please!

I have not understood about gk paper yet. I am confused about gk, that what to read and what not to read!!!!!!!!! its really strange case for me. So please help me out in this regard, in gk paper only we are suppose to attempt mcqs or fill in the blacks akhrrrrrr whatttt? prna kya he? Please Please let me know this thing in a pretty detail. Thanking in advance......