Asking for Permission

Would you mind if I _____ (to call) your parents tomorrow?

Do you mind if I ______ (buy) a new pair of shoes for Joe? They are really old.

Would it be ok if I ______ (to do) the homework on a separate sheet of paper? This is not my book.

May I _____ (to visit) your mom later? I've heard she's sick.

Can I ____ (to use) your phone to make a call? I've ran out of battery.

Could I _____ (to get) your dentist's phone number? I don't like mine.