Réponse:
1 When did he have his breakfast?
2 Where did he have his breakfast ?
3 at what time did he have his breakfast ?
4 How many pieces of toast did he eat?
5 Who wasn't very pleased?
6 Why was his mom not pleased?
Explications:
Pour la 1 et la 2 tu peux aussi mettre eat à la place de have
Je ne suis pas sur pour la 3
J'espère avoir pu t'aider :]