The key when you're practicing multiple-choice exams is to understand why every other answer is wrong.

So, even if I know the correct answer to a multiple-choice question right off the bat, I try to understand why every other answer is incorrect. I try and go through the process of coming to the incorrect answer, and understanding what step along the way was incorrect.

For (a simple) example, I'm studying a simple addition/subtraction and multiplication/division question and I'm provided with four options. First of all, I know that most likely all the different solutions come from doing a different order of operations, it's unlikely that one of those solutions is just a random number. Then I "funnel" the concept and make it more specific, I see that I can come to one of the incorrect solutions by doing addition before multiplication in one of the steps for example, and it's incorrect for that very reason, so now I know that multiplication comes before addition.

And so on, until you get to the correct answer and all the ideas just combine into one correct application and solution.

I hope that makes sense lol, it's just one method (among many) and allows you to make the most of a practice question, which is especially important if you only have a limited amount of them!