Bonjour,
Réponse :
23 We should have expelled you.→ active voice
passive voice→ You should have been expelled (by us)
24 They are discussing the problem.→ active voice
→ The problem is being discussed ( by them)
25 Somebody was following Mary.→ active voice
→ Mary was being followed ( by somebody)
Explications :
Passive voice ( be conjugué )+ participe passé
