Active and passive voice

Change these sentences into the active voice  The car was stolen (by the robbers) The party was interrupted (by a gatecrasher) The chair was made of sausages (by the artist) I am being screamed at (by my boss) Food can be used in art, by the artist The students are taught  The newspaper is bought everyday   Change this into the passive voice  The police opened the door of the car  Alejandra Prieto presented an exhibition   She built the chair with sausages The photographer took a picture of the parrot  They make book with papers The students folded the paper and gave to the teacher  People make books with paper  The students form the third year printed the assignment in the enlace computing room.