Select the correct Passive form of the given sentence.   Don't reply until someone asks you something.

Don’t reply until you are asked something. Don't reply until someone is asked to you. Don’t reply until you have been asked. Don’t reply until someone has been asked to.

Don’t reply until you are asked something.

Answer: a.; ‘are asked’ is used according to Present Indefinite tense rule and singular subject. ‘I form+ s/es’ is changed into ‘is + III form’.