8.6.13.1 Rewrite the phrases in bold in
your notebook, using an appropriate
modal and making any other necessary
changes.
1 You aren't allowed to board the plane yet.
2 Would you help me with my bags?
3 I advise you to call a taxi.
4 Is it OK for me to leave early on Friday?
5 It's likely that we'll be late for our train.
6 Is it possible for us to choose a different
flight?
7 You're obliged to book your seats online.
8 It's possible they will close the road on
Monday.
9 It isn't necessary for you to buy tickets at
the station.
10 It's a good idea to check if you have enough
fuel.​