Bonjour,
Réponse :
Les questions auxquelles on peut répondre par yes ou par no sont les questions qui commencent par des auxiliaires.
Quelques exemples d'auxiliaires : do ( does / did ); can ( could ); will; would; be ( am/is/are/were/was ) ....
Do you like tea ? Yes, I do / No, I don't
Did you visit the Empire State Building ? Yes, I did / No, I didn't.
Can you swin ? Yes, I can / No, I can't
Is she French ? Yes, she is / No, she isn't
Are they watching TV ? Yes, they are / No, they aren't
Were they with you ? Yes, they were / No, they weren't
etc ...
N'hésite pas si tu as des questions.