Réponse :
1.
a. John, the buttler was cleaning the library.
b. Mary, the cook was making scones.
c. Gary, the gardener was planting tomatoes.
2.
a. Were you sleeping at 9:00am this morning ?
b. Where was he going when he found the body ?
c. What were they doing in the garden ?
3.
a. I was taking a walk when I saw a terrifying dog.
b. When the police arrived, we talked and played cards in the garden.
c. They weren't working when I got home.
