Past simple and past perfect

Past simple&past perfect
1.    As soon as we _____________________ (realize) what _____________ (happen), we __________________ (call) the police.

2.    Last year we ___________________ (decide) to go on an excursion.

3.    However, when we ___________________ (come), we saw that they _________________ (start) a renovation.         

4.    Yesterday I _________________ (hear) the song you ________________ (tell) me about the previous time.

5.    She _________________ (show) me the book she _________________ (take) from _ she _________________ (not/prepare) for it properly.

6.    We ____________________ (eat) the cake she _______________ (bake).

7.    They ___________________ (explain) us and then we __________________ (start) to work.

8.    After everyone ____________________ (come) the meeting _______________ (start).

9.    The teacher _______________ (punish) the boy for what he_­_________ (do).

10. They ________________ (have) a fight because he ______________ (gossip) too much.