specialize

intransitive verb Conjugation ,

specialise

intransitive verb Conjugation [ˈspeʃəlaɪz]

to specialize (in)

especializarse (en)

specialize

French

German

Italian

Complétez la séquence avec la proposition qui convient.

We're late, we … take a taxi to catch the plane!
- don't have to
- have to
- mustn't