Choose the modal verb that can substitute the verb in capitals without changing the meaning.
CAN I make a phone call, please?
- may
- might
- should
- must
You SHOULD join that German course
- must
- ought to
- can
- have to
You HAVEN´T GOT TO do the cleaning. There´s a cleaner who comes twice a week
- mustn´t
- can´t
- needn´t
- shouldn´t
I think you´D BETTER call him. I haven´t heard from him for ages.
- should
- must
- need to
- have to