Answer:
My car was stolen by a thief.
Step-by-step explanation:
▪️Active Voice refers to a sentence in which the subject is performing the action.
▪️Passive Voice refers to a sentence in which the subject undergoes the action.
▪️While changing you have to be aware of the verb form.
▪️Always blindly convert the main verb into its past participle or third form while converting from active to passive voice.
▪️Use the word “by” before the subject in the passive sentence
▪️When you change the verb form of the main verb, the tense of the auxiliary also changes accordingly.