даю 100. Только у правильном часе , который указан

1 was explaining
2met
3was listening
4started
5exploded
6 appeared
7 increased
8 visited / bought
9 cleaned
10 was cleaning
11 lived
12took
13 arrived
14 was driving
15 dropped
16 did / was doing
17 found / was having
18 will win / will buy
19 was working
20were swiming

ниже

Объяснение:

1 .was explaining

2.met

3.was listening

4.started

5.exploded

6 .appeared

7 i.ncreased

8 .visited ;bought

9. cleaned

10 .was cleaning

11. lived

12.took

13 .arrived

14 .was driving

15 .dropped

16 .did ;was doing

17.found ;was having

18 .will win ;will buy

19 .was working

20.were swiming