Bonjour,
Réponse :
People advised us to visit the apartheid museum.
→ We were advised to visit the apartheid museum.
a. The government will not allow the demonstration.
→ The demonstration will not be allowed.
b. People celebrated Mandela's 100th anniversary.
→ Mandela's 100th anniversary was celebrated.
c. They should voice their concerns using social media.
→ Their concerns should be voiced using social media.
d. People will never forget apartheid.
→ Apartheid will never be forgotten.
e. Somebody told me what the students' protest was about.
→ I was told what the student's protest was about.
Explications :
PASSIF :
BE ( au temps de la voix active ) + participe passé