Вот пять вопросов к предложению "My mother sold fruit and vegetables two days ago":
Общий вопрос: Did my mother sell fruit and vegetables two days ago?
Альтернативный вопрос: Did my mother sell fruit or vegetables two days ago?
Разделительный вопрос: My mother sold fruit and vegetables two days ago, didn't she?
Специальный вопрос: What did my mother sell two days ago?
Вопрос к подлежащему: Who sold fruit and vegetables two days ago?