Sagot :
Bonjour,
Réponse :
1. When did they introduce free diving?
→ When was free diving introduced?
2. Where were they holding the competition?
→ Where was the competition being held?
Explications :
Phrase active interrogative:
Mot interrogatif + auxiliaire + sujet + base verbale + complément
Prase passive interrogative:
Mot interrogatif + BE ( au temps de la voix active ) + sujet + participe passé