1 Visitors the hospital at 8.
2 You your shoes in the gym.
3
There isn’t any milk. I some.
4 You in the library. Please be quiet.
5 Train
passengers a valid ticket. 
2 Use these words to write sentences with must
o mustn’t.
you
/ not send text messages in class
You
mustn’t send text messages in class.
1 everybody
/ be at school by 8 a.m.
2 you
/ not write on your desks at school
3 students
/ not eat or drink near the computers
4 I
/ do this homework today
5 you
/ not be late for school
3 Rewrite these sentences using must o mustn’t.
Don’t
use mobile phones in the hospital.
You
mustn’t use mobile phones in the hospital.
Cross
the road at the zebra crossing.
You
must cross the road at the zebra crossing.
1 Don’t
eat in the church.
2 Buy
a ticket before you get on a train.
3 Wear
clean trainers in the sports centre.
4 Don’t
leave your bikes here.
5 Don’t
skateboard in the street.
