Réponse :
Bonjour,
****1=to talk about something which happended a very short time ago,
===> C= de use the présent perfect with just
ex : She has just done her homework ( Elle vient juste de faire son travail )
***2=to talk about something which will happen very soon
==> A=we use the présent perfect with yet
ex : Has she arrived yet ? ( Est-ce qu’elle est déjà arrivée? )
****3=To talk about something which happended not long ago, or sonner than something expected
== > B=we use the présent perfect with already
ex : She has already done it. ( Elle l'a déjà fait )
