c. Fill in the blanks with MUST or MUSN’T

1. She is ill, so she ____________ see the doctor.

2. It is raining. You ____________ take your umbrella.

3. You ____________ throw litter on the stairs.

4. This is a secret. You ____________ tell anybody.

5. You ____________ make noise in the library.

6. We ____________ hurry or we will miss the bus.

7. You ____________ eat fruit and vegetables.

8. The baby is sleeping. You ____________ shout.

9. You ____________  be friendly to everybody.

10. You ____________ walk on the grass in the park.