5 вопросов к предложению He already written this letter today (Общий,специальный, разделительный, альтернативный, к подлежащему).

1.Has he already written this letter today? 2,When has he already written this letter? 3. He has already written this letter today,hasnt it? 4.Has he already written this letter today or yesterday ? 5.Who has already written this letter today?