Write the correct preposition.
1)He was born ______ September.
2)I go swimming _____the weekend.
3)My sister does her homework____the afternoon.
4)I do not go out _____Friday evenings.
5)We went to the concert _______lfst week.
6)I woke up _______midnight.
7)________ summer he usually stays with his grandparents.
8) My mother was born_____May 20.
9)We were at home_______yesterday evening.
10) We get a lot of presents _______Christmas Day.