Odpowiedź:
1 is held
2 is organized
3 are sent
4 is published
5 was held
6 was installed
7 was organized
8 was encouraged
9 were sold
10 was donated
Wyjaśnienie:
1-4 Simple Present : be ( am/are/is) + imiesłów bierny czasownika
5-10 Simple Past : be (was/were) + imiesłów bierny czasownika