1. Prepositions of Time In – On – At
IN AT ON
Months, years, seasons, future Specific times, parts of months Days of weeks, Calendar days
in January at six o'clock on Monday (one day)
in 1978 at 10.30 on Fridays
in the twenties (1920-1929) at two p.m. (米) -- on the weekend
in summer, winter at noon, midnight
on Christmas day
in the middle of (March) at the beginning of (March) (米) -- on October 22nd
at the end of (March) (英) -- on 22 October
in a few weeks
in a couple of days (英) -- at the weekend
in a while
Points to note:
1. in the morning in the afternoon in the evening at night
In English, it is in the morning, afternoon or evening BUT 'at night'
2. When using words like this, that, next, or last, do not use in/on/at
I will go to the doctor’s office on Monday
I will go to the doctor’s office this Monday. (not on this Monday)
When choosing the correct preposition, it is important to pay attention to the first word or number of the
series.
I was born ___ 1968.
I was born ___ November, 1968.
I was born ___ the middle of November, 1968.
I was born ___ November 12th, 1968.
I was born ___ Tuesday, November 12th, 1968.
I was born ___ 4:35 November 12th, 1968.

2. Questions
1. The train leaves ___ five minutes, hurry up. 6. She is starting work ___ June 4th.
a. at a. at
b. on b. on
c. in c. in
2. I'm going to America ___ April. 7. What do you do ___ the evenings?
a. at a. at
b. on b. on
c. in c. in
3. He doesn't work ___ Sundays or Mondays. 8. I can't sleep ___ night these days.
a. at a. at
b. on b. on
c. in c. in
4. In England the shops close ___ 5:30. 9. Where are you going ___ the summer?
a. at a. at
b. on b. on
c. in c. in
5. She never feels very good ___ the morning. 10. I was born ___ 1966.
a. at a. at
b. on b. on
c. in c. in
1. I'll see you ________ May. 6. I'll call you ________ this evening.
on in at no preposition on in at no preposition
2. I'll see you ________ next Tuesday. 7. I'll call you ________ the evening.
on in at no preposition on in at no preposition
3. We play tennis ________ every week. 8. I'll talk to you ________ the 10th of June.
on in at no preposition on in at no preposition
4. Let's meet ________ 4:30. 9. She can't come ________ Monday.
on in at no preposition on in at no preposition
5. I'm going to work ________ half an hour. 10. I like to watch TV ________ night.
on in at no preposition on in at no preposition