Complete the sentences with the correct past simple

or past perfect form of the verb in brackets.
0 I almost didn’t recognise Harriet because she had
changed (change) her hair colour.
1 Ι (call) the police last night because
someone had stolen my car.
2 (you / ever / meet) John before you saw
him at the party yesterday?
3 I suddenly remembered where I (see) that
man before.
4 By the time I got to the station, the train
(leave).
5 The shop owners (buy) a burglar alarm
after they had been robbed a second time.
6 I didn’t know Ben (work) in a bank before
he joined this company.
7 The policeman (win) an award for bravery
because he had rescued some people from a fire.