Preposition of Direction

I was walking (a)   the street when I saw my best friend.

May Lee is running (a)   the field.

Jasmine is jumping (a)   the hoop.

The man is riding his camel (a)   the desert.

The poor boy kept on looking (a)   the window waiting for his parents.

A crew of pirates are sailing (a)   the ocean.

The police lost the burglar after they went (a)   the dark tunnel.

The aeroplane often flew (a)   the city.

Maria looked (a)   her telescope last night and saw many beautiful stars.

The stargazers loved seeing shiny stars (a)   the sky.