1) We need more services for the disabled.
Do we need more services for the disabled?
What do we need for the disabled?
Do we need more services for the disabled don't we?
2) Many teenagers had arguments with their parents about going out at night
Did many teenagers have arguments with their parents about going out at night?
What did mane teenagers have with their parents about going out at night?
Do many teenagers have arguments with their parents about going out at night, don't they?
3) They aren’t going to clean the windows.
Are they going to clean the windows?
What are they going to clean?
Are they going to clean the windows, aren't they?
4) Everybody has to buy a ticket to go on a ferry ride.
Does everybody have to buy a ticket to go on a ferry ride?
Where does everybody have to buy a ticket?
Does everybody have to buy a ticket to go on a ferry ride, doesn't he?