We say that somebody/something is:

in a line / in a row / in a queue in bed

in the sky / in the world in the country / in the countryside

in an office / in a department in a photograph / in a picture

in a book / in a paper / in a magazine / in a letter

When I go to the cinema, I like to sit in the front row.

James isn’t up yet. He’s still in bed.

It was a lovely day. There wasn’t a cloud in the sky.

I’ve just started working in the sales department.

Who is the woman in that photograph?

Have you seen this picture in today’s paper?

on the left / on the right on the left-hand side / right-hand side on the ground floor / on the first floor / on the second floor etc. on a map / on a menu / on a list on a farm

In Britain we drive on the left, (or ... on the left-hand side.)

Our flat is on the second floor of the building.

Here’s a shopping list. Don’t buy anything that's not on the list.

Have you ever worked on a farm?

We say that a place is on a river / on a road / on the coast:

Budapest is on the (river) Danube.

Portsmouth is on the south coast of England.

Also on the way:

We stopped at a small village on the way to London.

at the top (of) / at the bottom (of) / at the end (of)

Write your name at the top of the page.

Jane’ s house is at the other end of the street.

at the top (of the page)

at the bottom (of the page)