Задание 1
1 was
2 was raining
3 had already gone
4 died
5 bought
6 broke, was eating
7 had ended
8 was doing
9 had been cleaning
10 hadn't sinished
Задание 2
1 when вместо while
2 was вместо had been
3 happened вместо was happening
4 were buying вместо had bought
5 was driving вместо drove
6 was playing вместо played
7 had spoken вместо spoke
8 came вместо was coming / was making вместо made