Réponse :
Exercice 1
a) How often
b)How long
c)How much
d)How often
Exercice 2
Nell: I've already done...
Mrs Lint: Have you ever raked leaves?
Nell: Because we never had a garden!
Mrs Lint: Have you ever taken care of dogs?
Nell: He never had a dog...
Mrs Lint: What jobs have you already done before?