1.my grandfather made the chest of drawers for my birthday presents. active voice or passive voice 2.the talented cardiac surgeon saves lives every day. active voice or passive voice 3. the chest of drawers was made by my grandfather for my birthday present. active voice or passive voice 4.lives are saved by the talented cardiac surgeon everyday. active voice or passive voice 5. concerts are performed by many of the stars for their favorite charity. active voice or passive voice. 6.many of the stars perform concerts for their favorite charity. active voice or passive voice.​