NI1 Using the prepositions AT, IN, ON

Prepositions are very difficult because every language has a different way of using them and there are many exceptions. As a general rule, we could say:

• IN is used for periods of time and for the inside part of buildings or places; e.g. in the kitchen, in July, in summer, in 2012....
• ON is used for things on the surface of something or for days; e.g on the wall, on the table, on Monday, on 3rd November, on holiday on New Year's Eve...
• AT is for specific places but not always a "physical" one and it's for exact times or festivities; e.g. at Christmas, at 3.30h, at work, at the station, at Gino's...

To work with this difficult topic, let's do some exercises, although most of them are related to time: exercise 1    exercise 2    exercise 3    exercise 4   exercise 5    exercise 6    exercise 7  

I hope this will help you. See you in class.