Place A
the traffic light
at the traffic light
7 o'clock
at 7 o'clock
a concert
at a concert
December
work
at work
on a plane
the weekend
on the weekend
Busan
2021
in 2021
the second floor
on the second floor
a car
in a car
noon
at noon
the beach
on the beach
Friday morning
on Friday morning
the bus stop
at the bus stop
Jeju Island
Christmas
at Christmas
the countryside
in the countryside
25th of November
a bus
a book
in a book
autumn
page 1
on page 1
New Year's Eve
On New Year's Eve
university
at university