Question Detail They had not done their tasks. Their tasks had not been done.Their tasks had been not done.Their tasks have not been done.Their tasks have been not done. Answer: Option A Similar Questions : 1. Rahul mush have done that task. That task must had been done by Rahul.That task must have been done by Rahul.That task must have done by Rahul.That task must have been did by Rahul. Answer: Option B 2. We help the poor. The poor is helped by us.The poor are helped by we.The poor are help by us.The poor are helped by us..The poor was helped by us. Answer: Option D 3. He found the student guilty. The student was found to be guilty by him.The student was found guilty by him.The student was found to guilty by him.The student found to be guilty by him. Answer: Option A 4. Open the window. Let the window be opened.Let the window will be opened.Let the window was opened.Let the window is opened.Let the window is been opened. Answer: Option A 5. Let me do this task. Let this task be did be me.Let this task done be me.Let this task be done be me.Let this task be do be me. Answer: Option C Read more from - Change Of Voice Questions Answers