Modal Verbs — Obligation

Complete the exercises, then check your answers. Total: 9 points.

Exercise 1
Escolha a forma correta
3 points
Toque na melhor opção.
1
You ______ pay — it's free for students.
2
You ______ touch the exhibits — it says 'Do not touch'.
3
I ______ finish this report before 5pm — my boss wants it.
Exercise 2
Complete com o modal correto
3 points
Use must, have to, mustn't ou don't have to.
1
You ______ bring food — the hotel provides all meals. (sem obrigação)
2
Doctors ______ keep patient information confidential. (obrigação — regra)
3
You ______ tell anyone — it's a surprise! (proibição)
Exercise 3
Corrija o erro
3 points
Escolha a versão correta.
1
You mustn't to wear a tie.
2
I don't must work at weekends.
3
You don't have to park here — it's a no-parking zone.