8.6.13.1 Read the signs and fill in:
mustn't, have to, may, don't have to.
ALL TRAINS DELAYED
DO NOT
ENTER
PARK GATES
CLOSE AT
6:30 PM
FREE PARKING
FOR UP TO ONE HOUR
1 You .............
....... get home late today.
2 You ............................ drive up this street.
3 You ........... leave the park before 6:30 pm.
4 You .................. pay for parking if you stay
for less than an hour.​