a) you habe broken
b) I have left your book
c) Mum! have you washed my blue top?
d) That's not true! Sheryl has not say anyting ...
Exercice 2
You have not finished your work (present perfect: jusqu'à présent tu n'as pas fini ton travail)
yesterday you laughed at sylvia (preterit car précision de temps avec yesterday (hier)
you are always picking on the little ones.
