Have is the action of what you are though-ting my old teacher would say. Of is just what it sounds like your saying if you don't annunciate well. Have is correct.
Have is correct, sometimes when people say "I would have thought" it sounds like "of" instead of "have" but it's always been have.
The correct response is : I would have thought.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.