AT - ON - IN

When to use the prepositions at, on and in can sometimes be confusing.
Below are some examples to help you.

AT  -  ON  -  IN
Examples of use :
	Space/Location		Time		Other
AT	David is waiting at the bank.		At 9 o'clock		Anne is good at English.
	I saw Mary at work, at home, at the party, etc.		At the age of 80.		Look at that car!
	We landed at the airport.		At dawn.		The golfer aimed at the flag.
	At a specific address: (at10 Downing St.)		At night		Laugh at a joke.
ON	The bank is on Oxford street.		On December 25th.		On television./ On the radio.
	The offices are on 5th Avenue.		On the day we arranged.		On the phone.
	The book is on the desk.		On Sunday.		On the computer.
	Don't walk on the grass.		On my birthday.		On holiday(s)/on sale/on fire
IN	He lives in New York.		In 2012.		She writes in English.
	She works in advertising.		In a minute, a month, a year, the future, the past.		He is in good humour.
	The children are in the garden.		In the morning, the afternoon, the evening.		They are in danger.
	The desk is in the office.		In winter, spring, summer, autumn.		We are in good health.

Example:
Harry and Sally met each other at a barbecue while they were on holidays. They live in the same town so they arranged to meet again at the cinemaat 7 o'clock on the following Saturday. The cinema is on main street in the town centre. Later in the evening they had dinner in an Italian restauranton the square.