The answers are Yes, No and Are You Kidding Me?
"Professor, would you mind if I left class early today? I have a doctor's appointment."
"Will you tell us what's going to be on the test?"
"Do I really need to know this?"
"Can I retake the exam if I don't do well?"
"I'm really tired--can I take the exam with your afternoon class instead?"
"I'm leaving early for fall break. Can you give me the midterm when I get back?"
"I'm really swamped with assignments. Can I turn my paper in a few days late?"
"Could we meet in your office to discuss my grade?"