Кто силен в английском нужна помощь

Общие:
1. Do they usually have dinner at 5 o'clock?
2. Does he receive five letters a day?

Альтернативные:
1. Do they usually have dinner at 5 or at 6 o'clock?
2. Does he receive five or eight letters a day?

Разделительные:
1. They usually have dinner at 5 o'clock, don't they?
2. He receives five letters a day, doesn't he?

Специальные:
1. At what time do they usually have dinner?
2. How many letters a day does he receive?