Alex cleaned his room yersterday
1. общий
Did Alex clean his room yersterday?
2. специальный
What did Alex clean yersterday?
When did Alex clean his room?
Whose room did Alex clean yersterday?
What did Alex do yersterday?
Who cleaned his room yersterday?
3. АЛЬТЕРНАТИВНЫЙ
Did Alex clean his or parents* room yersterday?
Did Alex clean his room yersterday or 3 days ago?
4. РАЗДЕЛИТЕЛЬНЫЙ
Alex cleaned his room yersterday, didn*t he?