Поставьте вопросы к предложениям my friend is doing his lessons now. (общий, альтернативный, who? ) i saw my friend in the street yesterday. (общий, альтернативный, where? )

Is my friend doing his lessons now? Is my friend or her friend doing his lessons now? Who is doing his lessons now? Did I see my friend in the street yesterday? Did I or you see my friend in the street yesterday? Where did I see my friend yesterday?