Раскрыть скобки и поставить в правильной форме дам 35 баллов!!!!!!

Question

Раскрыть скобки и поставить в правильной форме дам 35 баллов!!!!!!

---

Answer 1

1 went

2 was cooking

3 had just gone

4  has been watching

5 has changed

6 was walking

7 was waiting

8 has already invited

9 has been translating

10 have known

11 has seen

12 started

13 was skiing

14 have lost

15  answered