Réponse:
1)
They have never been to London .
I have been sick for two weeks .
We have already seen that movie .
She hasn't seen him since last summer.
We have bought a new house last week.
2)
Have you ever fought in public?
Have you already met a celebrity?
Have you ever been to America?
Have you ever bullied someone?
3)
-The boy has been hit by his classmates.
-The children have forgiven their bullies.
-The girl has been held responsible for the accident.
-The school has forbidden the use of mobiles because of cyberbulliying.
