Got Test Back

I got my test back today and I got an 81%. I'm not very happy with my score because I knew all the material, but I just didn't understand the wording of some of the questions. We had a discussion about relative and absolute location and how some of the questions on the test we're ones that we thought were relative, but the answer was actually absolute. I think these questions were too vague and didn't make sense which is the reason I got a lower grade than I wanted.