I usually go to the swimming pool ..... sundays
on
My birthday is ...... thursday
on
I have classes ..... mondays
on
I wake up ...... 7 am
at
The school starts ..... 8 am
at
I go to the beach ..... summer
in
I go to the gym ....... 10 am
at
The weather is cloudy ...... autumn
in
It's really cold ..... winter
in