1 Complete the sentences by choosing the
correct alternative.
1 I don't like my hair like this. I must/have to go to
the hairdresser.
2 You mustn't/don't have to go near the river. It's
dangerous.
3 When I was a child, I mustn't/wasn't allowed to
watch television.
4 You don't have tolmustn't go to the party if you
don't want to.
5 Sorry I'm late. I had to/didn't have to go to the
doctor.
6 When I was ten, I didn't have to/wasn't allowed to
go to bed after 9 o'clock.
7 In the army, you must/have to clean your own
boots.
8 You should/mustn't apologise for being so rude.
9 We mustn't/didn't have to go to school yesterday
because it was a holiday.
10 I'm going to work late tomorrow. I mustn't/don't
have to arrive until 11 o'clock.​