Modal verbs: can, have to (don't have to) and must (mustn't)

1. We ______ give in this work before Tuesday. We've got three days!

2. You _______ apologise; it isn't necessary.

3. It's my birthday and I ________ invite two friends to stay!

4. You _______ tell the boss what happened, or he'll fire you.

5. I don't like these clothes, but I _____ wear them at work.

6. Teacher: 'You _____ arrive on time for class.'

7. Olly _______ work at the supermarket next weekend. It's a holiday.

8. I _______ come round to see you tonight because my mum wants me to tidy my room

9. You ____ put salt in her food; the doctor said she can't eat salt.

10. You ______ borrow my tablet if you want

11. You ______ join the photography club because it's full

12. I _____________ go on that website because I haven't got a password.