[Niv 4e] Pose une question sur l'élément qui est en gras:
1. They have stayed with us since yesterday
2. She has been ill for two days.
3. Peter hasn't written anything in the diary for one week.
4. I've been living in London since 2008.

Merci Beaucoup de M'aider ♥ (:




1.Since when did they stay with you?
2. How long has she been been ill?
3.When did Peter  write lastly in his diary?
4.Since when have you been living in London? 

Since when have you been living in London?
je dirai plutot HOW long have you been living in london