Помогите с вопросами по Английскому языку

1)Before the plane takes off, the stewardess gives all the information about the flight, the speed, and the altitude.
Does the stewardess give all the information about the flight, the speed, and the altitude, before the plane takes off.?
Wnen does the stewardess give all the information about the flight, the speed, and the altitude?
What information does the stewardess give before the plane takes off.?
What does the stewardess do before the plane takes off.?
Who gives all the information about the flight, the speed, and the altitude, before the plane takes off.?

2)When the train starts, you can take your berth and watch everything through the window, can/t you?
Can you take your berth and watch everything through the window, when the train starts?
What can you watch through the window, when the train starts?
When can you take your berth and watch everything through the window?
Who can take berth and watch everything through the window, when the train starts?

3)Travelling by liner is the most expensive way of travelling, isn't it?
Is travelling by liner the most expensive way of travelling?
What is the most expensive way of travelling?
Why is travelling by liner the most expensive way of travelling?
What travelling is the most expensive ?

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