Identify the kind of modal auxiliary used in each sentence. Write a, b, or c in each blank.

a. Giving advice
b. Expressing need or obligation
c. Expressing lack of need

1		You'd better hurry, or you'll be late to class.
2		You must have a driver's license in order to drive.
3		You should not be absent.
4		You don't have to take the English test if you don't want to.
5		I didn't have to study very hard to pass.
6		You will have to pass a driving test.
7		You ought to attend class regularly.
8		I won't have to study late tonight.
9		You must have a license in order to drive.
10		I had to take the written test twice.