I'm not in school anymore, but high school exams went a little something like this:
*before the test*
Teacher *as he/she's passing out papers*: You have the entire class period to finish this test. Good luck!
Me: *works very slowly as I try to remember the answers to the questions, saves the hard ones for later*
*after the test*
Teacher: Steph, did you finish?
Me: No, but can I do it during study hall?
Teacher: Yes, but it's due tomorrow.
*during study hall*
Me: *uses the textbook to find the answers*
*when the results come in*
Teacher: *silently gives me my test back*
Me: *looks at the big fat C, D, or sometimes even F with shock, groans internally*
lol on easy subjects like math, foreign language, and the pregnancy and baby unit in sex ed, I got As and Bs, though.