Bonjour pouvez vous m'aidez à l'exercice d'anglais ci joint Merci par avance de votre aide

1) Alison's cat was born 15 years ago.
2) Her favourite horse died 10 years ago.
3) Her father bought a new horse a year ago.
4) She started going to her high school 6 months ago.
5) She had her riding lesson a week ago/three days ago.