Read the classroom rules again and match the words with their uses.

1. You must be on time.

2. You must raise your hand to speak.

3. You mustn't use your phone during lessons.

Choose the grammatically correct sentence.

Fill each blank with must or mustn't.

1. You mustmustn't leave the hotel room before 12 o'clock.

2. You mustmustn't make lots of noise in the museum.

Fill each blank with must or mustn't.

3. My mum says you mustn'tmust always tell the truth.

4. You know you mustn'tmust go to bed with your shoes on.

5. I want to speak English better. I mustmustn't practise more.