Have you been to italy?Where have you been? Why have you been to italy? Who has been to italy? написать общее,специальное,альтернативное

David studies Biology at University. 1. Общий вопрос:Does David study Biology at university?2. Специальный вопрос: Where does David study Biology?3. Альтернативный вопрос:Does David study Biology or Geography at university?4. Разделительный вопрос:David studies Biology at University, doesn’t he?