open the brackets using past perfeck or past simple:
1.she (go) for holiday after she (pass) her exams.
2. When I (get) to the cinema, the film already (start).
3.She (fell) sick after she (eat) a whole box of chocolates.
4. After she (lock) all the doors, she (go) to bed.
5. When we (come) back, the telegram already (arrive).
6. Was Tom at the party when you (arrive)? - No, he (go) home.
7. The house (be) very quiet when I got home. Everybody (go) to bed.
8. Sorry, I'm late. The car (break) down on my way here.
9. We were driving along the road when we (see ) a car, that (break) down, so we (stop) to help.
10. I (thank) her for everything she (do) for me.
11. When I got to the Academy, I (realize) that I (forget) to lock my house.
12. I (take) my family to Voronezh last year. I (be) there as a student, so I (know) my way around.
13. He (be) a porter before he (become) a businessman.
14. I (fell) a little better after I (take) the medicine.
15. I was late. The teacher already (give) a quiz when I (get) to the class.
16. We (have) a good rest after all our guests (leave).
17. By the time we (come), the party (finish).
18. Yesterday I (see) Pam, who I (not see) for ages. At first, I (not recognize) her, because she (lose) at least 50 pounds.
19. It was raining hard, but by the time the lesson (be) over, the rain (stop).
20. Millions of years ago dinosaurs (roam) the earth but they (become) extinct by the time humankind first (appear).