9) Write at, on or in. Peter likes spending time with his family 1) ...at ... the weekend
2)
Saturday mornings, Peter and his sister go far a walk with their dog. 3)
... the
afternoons, the family usually go to the cinema. Then 4)
about 8 o clock they go to a
restaurant for dinner.
5)
Sundays, they get up late. They sometimes go for a drive in the countryside or visit their
grandparents. 6)
... the evenings, they all watch TV and then they go to bed.
Weekends are really special for Peter and his family.​

1) at - We use "at" before the word "weekend" to indicate a specific point in time when Peter likes spending time with his family.

2) on - We use "on" before the specific days of the week, such as "Saturday mornings," to indicate the day when Peter and his sister go for a walk with their dog.

3) In - We use "in" before the word "afternoons" to indicate a period of time during which the family usually goes to the cinema.

4) at - We use "at" before the specific time, such as "about 8 o'clock," to indicate the time when they go to a restaurant for dinner.

5) On - We use "on" before the specific day of the week, such as "Sundays," to indicate the day when they get up late.

6) In - We use "in" before the word "evenings" to indicate a period of time during which they all watch TV and then go to bed.

Overall, we use "at" to indicate a specific point in time, "on" to indicate a specific day of the week, and "in" to indicate a period of time.