Polite Requests in Daily Life

May I borrow your notes for today’s lecture?

Can you help me solve this math problem?

Could you lend me your textbook for a day?

Can I use your calculator during the exam?

Could you explain the concept of thermodynamics once again?

May I leave the classroom for a moment?

Can I submit my assignment tomorrow?

Could you tell me the date of the next test?

May I join the study group for the final exams?

Can you guide me in preparing a presentation?