Prepositions of Time - page 23
1. We use the prepositions
in,
on or
at to say when something happens.
AT
- We usually use at with clock times and mealtimes.
- We also use at with some specific phrases such as at the weekend and at night.
IN
We usually use in with parts of the day and longer periods of time such as months, seasons and years.
ON
We usually use on with days and dates.
Do grammar test 1 and 2