Задание 1
1.were
2.was
3.were
4.was
5.was
6.were
7.was
8.was
9.was
10.was
11.were
12.was
Задание2
1.was,2.were,3.was,4.was,5.was,were,6.were,7.was,8.was,9.were,10.was,11.were,12.were
Задание 3
1. I was happy to see you
2. This was my favourite book
3. Mary was not at school
7.Nora was on holidays in Italy
8. The dogs were under the table
9. My mobile was broken
Здесь не хватает нескольких предложений