Bonjour,
Réponse :
a. How many books did she write?
b. Where were you last night?
c. Did he have a house in London?
Explications :
Questions au prétérit simple:
→ Pour tous les verbes ( sauf "be" ):
( Mot interrogatif ) did + sujet + base verbale
→ Verbe "Be":
Was/were + sujet ...?
