Задайте пжлст 5 вопросов к предложению He entered university after he had finished school

1. When had he entered the university? 2. Where had he entered after he had finished the school? 3. Who had entered the university after he had finished the school? 4. Had he entered the university after he had finished the school? 5. I wonder, if he had entered the university when he had finished the school?