2. USE “ON” FOR:
Dates:
When do Costa Ricans celebrate Mother’s Day?
On August 15th.
Days:
When do you go to church?
On Sundays.
3. USE “IN” FOR:
Months: Morning, afternoon,
evening:
When do Costa Ricans
celebrate Mother’s When do you study
Day? English?
In August. In the morning.
Years: Seasons:
When were you born?
In 1976. When can you see
snow?
In the winter.
4. USE “AT” FOR:
Specific time of the day:
What time does the class start?
At noon.
At eight o’clock.
Night:
When do you feed your dog?
At night.