You've only got one idea in your head.
You are very single-minded with all your thoughts on one idea.
You are very open-minded and willing to consider many different ideas.
The people are filing their taxes.
The gambler was talking to Sam.
Two children outside in the snow.
A cross is carried down the street by a group of men.
A girl is with a baby.
The lawyers disregarded her interpretation of the law.