Bonjour,
PASSIF :
BE ( conjugué ) + participe passé
Pour mettre la phrase à la voix active tu peux :
- Repérer le complément d'agent, il devient sujet de la voix active
- Ensuite mettre le verbe au temps de la voix passive
Réponse :
a. The car is being cleaned by the children.
be ( au présent be + V-ing ) + participe passé
→ The children are leaning the car
b. Mark has been invited by her.
be ( au present perfect ) + participe passé
→ She has invited Mark.
c. English is spoken by a lot of people all over the world.
be ( au présent ) + participe passé
→ A lot of people speak English all over the world.
d. The lady's luggage* will be carried to her room by the porter.
be ( au futur ) + participe passé
→ The porter will carry the lady's luggage to her room.
