7 Complete the sentences with should, shouldn't,
must, or mustn't. (5 marks)
1 You
wear that T-shirt. It's not a very
nice colour.
2 All students
arrive in time for the
exams.
3 You
use your mobile phone in class. It
isn't allowed.
4 It's cold today. We
wear warm
clothes.
5 You
eat that plant. It's dangerous!