Exercise 72.1: In/ on/ at

Fill in the blank with in, on or at.

Example: I'll see you ____ half past four.
Answer: I'll see you at half past four.

1. ____ that time of the year, it was very hot.

2. You can always phone late ____ night.

3. The First World War ended ____ 1918.

4. It was so cold ____ Christmas Day.

5. We always have a turkey ____ Christmas.

Unit 72