Where are you now?
What city do you live?
What do we use for SURFACES and PUBLIC TRANSPORTS?
ON
Where do you work?
What day do you Celebrate christmas?
What do we use for CLOSED SPACES and GEOGRAPHICAL REAGIONS?
IN
What time does our class finish?
When were you born?
What's your address?
Where do you write your notes?
When do people usually have lunch?
When are you going to travel?
What time do you go to bed?
Where will you live in the future?
When does it usually snow in England?
What do we use for a POINT and INSTITUTIONS?
AT