не могу сделать английский

1. Olga will be invited to the party by Oleg.
2. Grammar rules are explained by the teacher.
3. The plan has been accepted by the committee.
4. The toys were being washed by my cousins.
5. The magazine has been returned to the library by Tamara.
6. The document will be signed by the manager.
7. The pencil was sharpened by Sveta.

1 have just been packed
2 has just been cut
3 has just been checked
4 has just been written
5 have just been read
6 has just been cooked
7 have just been bought
8 have just been booked
9 has just been cleaned
10 has just been translated