Grammar – Modals of obligation and advice

Read the text and then do the exercise.

Rules and Advice for the self-study centre

• You must put your mobile phone on silent and go outside to take a call.
• You don’t have to study alone - there is an area for groups.
• You mustn’t talk in the individual study area.
• You mustn’t eat in the self-study centre.
• You have to sign-up for an individual log-in to use the computers. 
• You don’t have to bring your own headphones - they are provided at each computer station.
• To improve your English you should try to come at least once a week. 
• You shouldn’t use the self-study centre computers to access your personal email. 

Choose the correct modal verb to fill the gaps.