1. My parents have been married for thirty years.
Общий: Have my parents been married for thirty years?
Разделительный: My parents have been married for thirty years, haven't they?
Альтернативный: Have my parents been married for thirty or twenty years?
Специальный: How long have my parents been married for?
Вопрос к подлежащему: Who has been married for thirty years?
2. My boss has to go on business next week.
Общий: Does my boss have to go on business next week?
Разделительный: My boss has to go on business next week, doesn't he?
Альтернативный: Does my boss have to go on business next week or next month?
Специальный: When does my boss have to go on business?
Вопрос к подлежащему: Who has to go on business next week?
3. Sarah has a lot of problems.
Общий: Does Sarah have a lot of problems?
Разделительный: Sarah has a lot of problems, doesn't she?
Альтернативный: Does Sarah have a lot of problems or duties?
Специальный: What does Sarah have?
Вопрос к подлежащему: Who has a lot of problems?