3. Write on, in, at or - (= no preposition).

Fill in the prepositions:

1. I play golf on Sundays.
2. Is the play next Tuesday?
3. She'll be 15 in 26 May.
4. My family goes to Oslo every summer.
5. It's 11 o'clock at night.
6. Phone me in two days.
7. Phone me in two days.
8. Are you free on this weekend?

Note: In sentence 3, "in" is used because "26 May" refers to a specific date. In sentence 4, "every" functions as a determiner, not a preposition, so no preposition is needed. In sentence 7, "on" is typically used with days of the week and weekends. In sentence 5, "at night" is a common idiomatic expression.