Ответ:

1 had already reached

2 had stolen

3 had watched

4 had tried

5 had begun

6 had eaten

7 had snowed

8 hadn't studied

9 had left

10 had broken

11 had drunk

12 hadn't locked

13 had hidden

14 had forgotten

15 had never visited

16 had taken

17 had escaped

18 had joined

19 had paid

20 had died

Объяснение: