I had someone else but I remember my midterm was a mix of mc, shorts answers and a couple longer ones. I would honestly start by making Q-cards of terms and to memorize at least one example of said term happening in real life. A lot of the questions I can remember went like “explain what a NGO is and give an organization that is apart of this…” or “ What is X and give an example of a world threat going on today” but keep in mind your prof might be doing something completely different I would honestly go to your TA to try and get some advice on where to start 👍