Rewriting modals

Gap-fill exercise
By Juan Ignacio Montorio

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!

1. My mum didn't let us stay out late.
We .
2. Peter didn't have permission to go to the disco.
Peter .
3. Eating is prohibited in class.
You .
4. Is it OK if we do our homework later?
we ?
5. It's not neccessary for you to bring drinks.
You .