concentrate
[ˈkɒnsəntreɪt]transitive verb Coniugazione
concentrare
concentrate
[ˈkɒnsəntreɪt]intransitive verb Coniugazione
to concentrate (on sthg) concentrarsi (su qc)
Complétez la séquence avec la proposition qui convient.
I am sorry. I don't have … time.