1.Elisa was very upset because her computer disappeared/had disappeared yesterday
 a)disappeared
 b)had disappeared
 2.When Anne opened/had opened the door, she realized that somebody broke/had broken into.
 a)opened, had broken
 b)open, broke
 3. They had ridden/rode their bikes before they met/had met their friends.
 a)rode, had met
 b)had ridden, met
 4. When she arrived/had arrived the match had already started/ started .
 A)had arrived, started
 B)arrived, had started
 5. My cousin promised/had promised me to bring me a souvenir from France last month
 A)promised
 B)had promised
 6. After Fred had spent/spent his holiday in Italy he wanted/had wanted to learn Italian.
 A)spent, had wanted
 B)had spent, wanted
 7. The journalist interview/had interviewed the famous actress before she left/had left her dressing room.
 A)had interviewed, left
 B)interviewed, had left
 8. She watched/had watched a video after the children had gone/went to bed.
 A)watched, had gone
 B)had watched, went
 9. Philip tidied/had tidied his bedroom before he left/had left for work.
 A)had tidied, left
 B)tidied, had left
 10. Before he sang/had sung a song he had played/played the guitar.
 A)sang, had played
 B)had sung, played
 11. I was/had been very tired because I had studied/sudied too much.
 A)was, had studied
 B)had been, studied
 12. My husband did/had done the shopping after I called/had called him.
 A)did, had called
 B)had done, called