MCQ Practice English 📖 Which of the following sentences is correct ? ক Why did you done this?খ Why have you done this?গ Why you had done this?ঘ Why you have done this? Favorite Practice Add to Book Explanation & Answer Detailed explanations and answers are restricted. Unlock full access by logging in to your account. 🔒 Unlock the detailed explanation and answers Log In / Sign Up PreviousWhich of the following sentences is correct ? NextWhich of the following words is a plural number ?