Put in the articles where necessary.
What is the barometer?
_____ Weathermen collect _____ information about _____ weather.
Have you ever been to _____ National Gallery?
_____ Snakes are _____ reptiles.
Give me _____ collection of _____ stamps you bought yesterday.

Weathermen collect the information about weather.Have you ever been to the National Gallery Snakes are reptiles Give me the collection of stamps you bought yesterday