Réponse :a. was emptying when he droped

b. was hoovering when she came

c.were sleeping when he frightened

d.was eating when the cat jumped

a.what were you doing yesterday

b. did you come back

c. did you spend

d. were you doing

a. last saturday my parents left the house

b. i was watching tv with my brother when

c. suddenly i saw someone at the window

d. i locked the door

e. later that night we were eating

f. the power went out/ cut

g. we were left alone in the dark

h. when we heard the sound of a car

i. someone tried to open the door

j. it was my parents

Explications :