Question

These sentences change into active voice to passive voice. 1. Somebody stole my keys yesterday.​

Answer 1

My keys were stolen yesterday.

Step-by-step explanation:

In here, Stole is past, so we add were infront since object is plural. Subject becomes object and object to subject when converting to passive. So the answer is My keys were stolen yesterday. It is not necessary to add by somebody here.

Answer 2

The sentence "Somebody stole my keys yesterday" changes to "My keys were stolen by somebody yesterday" in the passive voice.

Step-by-step explanation:

In the passive voice, the object of the sentence (in this case, "my keys") becomes the subject. The subject of the sentence in the active voice (here "somebody") moves to the end of the sentence in the passive voice, preceded by the word "by". The verb, "stole", changes to its past participle form, "were stolen". So, "Somebody stole my keys yesterday" turns into "My keys were stolen by somebody yesterday" in passive voice.