(1)

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.

(2)

1. The letter must be sent.
2. Clothes have been washed.
3. A new road is being built in front of my house.
4. The trip will be arranged by the parents.
5. The house was sold yesterday.
6. The gate is being painted.
7. Ten trees were planted last Sudnay.
8. The gate was plainted with that brush.