4 задание
1) was picking
2) was he shouting
3) were swapping
4) weren`t joking
5) Was Misha digging
6) weren`t hurrying
7) was carrying
8) was driving
9) Was the teacher explaining
10) weren`t fighting
11) was packing
12) Were you sleeping
13) Weren`t you swimming
14) was dancing
15) Were they shaking
16) wasn`t helping
17) were enjoying
18) Was it getting
19) weren`t using
20) weren`t hiding