Prepositions of places

Don't sit _____ the grass. It's wet.

• in

• on

• at

Will you be ______ home this evening?

• in

• on

• at

The office is _____ the first floor.

• in

• on

• at

What have you got _____ your bag?

• in

• on

• at

Look! There is a man _____ the roof. What is he doing?

• in

• on

• at

It's difficult to carry a lot of things _____ a bicycle.

• in

• on

• at

My sisters live _____ Sydney.

• in

• on

• at

There is somebody _____ the door.

• in

• on

• at

I went for a swim _____ the sea.

• in

• on

• at

There is a stamp _____ the envelope.

• in

• on

• at