Answer:
Active Voice:
2.The talented cardiac surgeon saves lives every day.
6. Many of the stars perform concerts for their favorite charity.
Passive Voice:
3.The chest of drawers was made by my grandfather for my birthday present.
4. Lives are saved by the talented cardiac surgeon everyday.
5 Concerts are performed by many of the stars for their favorite charity.
Explanation:
Active voice is a grammar term used to classify sentences in which the subject of the sentence is the one actively performing the action of the verb.
Passive voice A verb is in the passive voice when the subject of the sentence is acted on by the verb.