Ответ:

ууу, много

Объяснение:

1)enjoyed, had seen

2)arrived, had already left

3)phoned, had gone

4)had met, saw

5)Had lived, decided

6)bought, had already read

7)knew, had met

8)opened, had already begun

9)had painted, came

10)hadn't finished, rang

11)met, had just returned

12)had heard, ran

13)tried, had already left

14)hadn't cleaned, came

15)finished

16)had written

17)understood, hadn't done

18)had returned, went

19)told, had never played

20)had been, became