Have a look at this table:
Preposition
|
Time expression
|
Examples
|
in | months | in July; in September |
| years | in 1985; in 1999 | |
| seasons | in summer; in the summer of 69 | |
| parts of the day | in the morning; in the afternoon; in the evening | |
at | part of the day | at night |
| time | at 6 o’clock; at midnight | |
| periods | at Easter; at the weekend | |
on | days of the week | on Sunday; on Friday |
| dates | on the 25th of December* | |
| special holidays | on Good Friday; on Easter Sunday; on my birthday |
Look at these examples:
- I have a meeting at 9am.
- The shop closes at midnight.
- In England, it often snows in December.
- Do you work on Mondays?
- Her birthday is on 20th November.
- Now, complete exercise 1, exercise2, exercise 3 and exercise 4
