Укажите верный вариант. I wake up.........7 o'clock. in, on, at, or

I wake up at 7 o\'clock.

Я просыпаюсь в семь часов.

Do I wake up at 7 o\'clock?

Do I wake up or go to school at 7 o\'clock?

Do I wake up at 7 or at 8 o\'clock?

When do I wake up?

What do I do at 7 o\'clock?

Who wakes up at 7 o\'clock?

I wake up at 7 o\'clock, don\'t I?