Directions: In this question, a sentence has been given in Active/Passive form. Out of the four alternatives suggested, select the one which best expresses the same sentence in Active/Passive voice.

Did he write a letter to his sister?

Explanation for option 1: “Past participle” is used in the “Passive Voice” hence “wrote” will be changed into “written”. Explanation for option 2: “Was a letter to his sister” will be correct. Explanation for option 3: This is correct as per the rules of active/passive voice. Explanation for option 4: As the “active voice” is in past tense, so “Was/Were and past participle“ will come in the passive voice.