Bonjour
1- How long have the Morgan's been living in LA ?
2- When did she get here? (When did she arrive there?)
3- How long have the children been watching TV?
4- How long have we known Robert ?
5- When did he begin to live in Bristol?
6- How long has it been snowing ?
7- How long has Mr Bristol been ill ?
8- When did they buy their new car ?
9- How long has she been wearing glasses ?
10- When did Bob start playing the piano?
Avec how long, on garde le present perfect=> on parle d'une durée
Avec When, on utilise le past simple (preterit). ll faut donc modifier le verbe pour préciser la question. On parle du point de départ de l'action.
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Bonne journée☺☺☺
