Вопрос по английскому языку:

Use the right form of Passive Voice
1) The car ... by the boys
a)were washed b)washed c)was washed
2) Dinner ... cooked by mum
a) was b) are c) were
3) The building ... two yeats
a) destroed b) was destroed c) is destroed
4) The computer ... stolen yesterday
a) is b)was c) were