At
Indicating precise / specific
periods of time
In
Indicating long, indefinite
periods of time
The time: at 7 o’clock
Months:
in January
Holidays: at Christmas
Seasons:
in Spring - Autumn
at Easter
Years:
in 1996
at the weekend
Centuries: in the 21st century
In the Expressions;
On
Indicating days, dates or
Part of a particular day
Days:
on Monday
on New Year’s Eve / Day
Dates: on May the 6th
on 21st of January
Part of a particular day
In the Expressions;
at the moment - at present
in a minute - in an hour
on Saturday evenings
at noon – at night – at midnight
in a day – a week – a year
on Monday mornings
at dawn – at sunset
in the morning / the evening
on holidays - on a cold rainy day
at lunchtime
in the past – in the future
on my birthday
Exercises; use in / on / at to fill in the blank spaces.
1. Shakespeare was born …………… 1564 ………………
th
26
of April and died ………… 1616.
2. I have an important job interview ……………
9am ……………… Monday morning.
3. The stars shine brightly …………… night
…………… Summer.
4. Jack is not here …………… the moment.
He said he would be back …………… an hour.
5. The shops close ……………… midnight and open
………………… 10am ………………… the morning.
6. I don't usually work ………………… weekends so
I don’t have to get up early as I do ……………
weekdays.
7. Many people visit their families ………………
12. I hope the doctors will find a cure for
cancer …………… the near future.
13. Many people used to die from contagious
diseases like Tuberculosis ……………… the past.
14. Children be patient, supper will be ready
…………… a few minutes.
15. There are five candidates for the job
……………… present.
16. Jenny has gone to stay with her parents.
She says, she will be back ……………… a week
or two.
17. Jane usually has a sandwich an apple
………………… lunchtime.
18. Many people used to jump into the fountain
Christmas and have lunch together ………………
……………… New Year’s Eve ……………… 12 o’clock
Christmas day.
……………… Trafalgar Square.
8. Scientist think that Global warming will get
worse ………………… the next century.
9. In England, people wish for snow ……………………
December, specially ……………… Christmas.
10. It is terrible to go to work early …………………
the morning ……………… a cold rainy day.
11. The meeting is ……………… Tuesday ………………
nine o’clock ………………… the morning.
19. My mother says that I was born ………………
Istanbul ……………… August the 26th …………………
6 o'clock ………………… the morning.
20. We took the test ………………… the same time
but he finished it ………………… an hour.
21. Schools start ……………… September and ends
………………… June in Turkey.
22. Isn’t the scenery beautiful here ……… sunset.
5. Shakespeare was born IN 1564 ON 26th of
April and died IN 1616.
6. I have an important job interview AT
9am ON Monday morning.
7. The stars shine brightly AT night
IN Summer.
8. Jack is not here AT the moment.
He said he would be back IN an hour.
5. The shops close AT midnight and open
AT 10am IN the morning.
6. I don't usually work AT weekends so I don’t
have to get up early as I do ON weekdays.
7. Many people visit their families AT
Christmas and have lunch together ON
Christmas day.
8. Scientist think that Global warming will get
worse IN the next century.
9. In England, people wish for snow IN
December, specially AT Christmas.
10. It is terrible to go to work early IN the
morning ON a cold rainy day.
11. The meeting is ON Tuesday AT nine o’clock
IN the morning.
12. I hope the doctors will find a cure for
cancer IN the near future.
13. Many people used to die from contagious
diseases like Tuberculosis IN the past.
14. Children be patient, supper will be ready IN
a few minutes.
15. There are five candidates for the job AT
present.
16. Jenny has gone to stay with her parents.
She says, she will be back IN a week or
two.
17. Jane usually has a sandwich an apple AT
lunchtime.
18. Many people used to jump into the fountain
ON New Year’s Eve AT 12 o’clock AT
Trafalgar Square.
19. My mother says that I was born IN Istanbul
ON August the 26th AT 6 o'clock IN the
morning.
20. We took the test AT the same time but he
finished it IN an hour.
21. Schools start IN September and ends IN
June in Turkey.
22. Isn’t the scenery beautiful here AT sunset.