December 6, 2024 by AdminWhich one of the following sentences is correct?Why have you done this?Why had you done this?Why you have done this?Why did you done this? Show Correct AnswerExplanation: Wh question auxiliary verb + Subject Pinciple Verb + Extension. যেমন- What did you do last night?Related posts:Nearest meaning of ‘AUGUST’Writer is related to Reader in the same way as Producer is related to ___________ ?Antonym of the ‘contraband’ isWhich is the correctly Spelt word?