Present Perfect or Past Simple?
 

Present Perfect or Past Simple? esercizio 6


Use the right tense (present perfect or past simple) for the verbs in brackets.


I _______ (travel) by plane many times. And to think that our ancestors never ______ (experience) what it's like to be on a plane. Planes ______ (not exist) then.


 

Autore principale e redattore del materiale didattico: Carmine Albanese