Grammar A. Read the
exar
dna
have to / can't
You have to be at the airport one hour before departure.
You can't smoke on the plane.
We use have to to express obligation and can't to express prohibition.
B. Read the situations 1-4 and write what the people have to or can't do
Use the verbs in the box
become
exchange
take
go
1. Tom's flight leaves from gate 14 and boarding begins in ten minutes.
2. Karen wants to take a bottle of water in her carry-on.
3. Marie and Andrew are traveling to Brazil next week, but they don't have any local money.
4. Carmen wants to become a flight attendant, but she doesn't speak English,