Bonjour tout le monde, Quelqu'un pourrais-t-il m'aider pour la A, B et C, j'ai du mal à comprendre ce que l'on me demande malgré l'exemple pour chaque exercice.

A : 
1. I used to smoke cigars, but I do not smoke cigars any longer. 
2. I used to believe in God, but I do not believe in God any more. 
3. I used to read poems, but I no longer read poems. 
4. My wife used to sing in the choir, but she does not sing in the choir any longer. 
5. South Africa used to be a member of Comonwealth, but South Africa no longer does. 
6. My son used to collect stamp, but he no longer does. 
7. A pub used to be in the village, but he does not exist any more. 
8. I used to trust my wife, but I no longer do. 
9. They used to have a dog, but they do not have any longer. 
10. They used to are gangsters in Chicago, but they no longer do.