The correct answer is 3 - past
It would be a past participle if it said had made. Present is make and present participle is making.
First you should know what internal conflict means so you have a better understanding of it. Internal conflict is the conflict of a character within himself/herself. So if you go over the definition and the answers what do you think it would be?
A. Xavier vs Magneto
B. Tony Stark struggling with self discipline in Iron Man
C. Harry vs Voldemort
D. Indiana Jones vs Nazis
If you think that the answer is B you are correct.
Have a wonderful day and I hope I could help!
The idiom is butterflies in her stomach
Sentiences 3 and 8 because they express emotional thought other than fact. For sentence three, using "terrible waste" can be debateable and shows more of an opinion. And sentence 8, by using "shouldn't" showing its still a posssiby something can or can not happen.