A or An? Use the clues to Learn the answer

Sometimes we use “a” and sometimes we use “an”.
It is a bird. It is an orange.

Can you discover why?

Here are your clues:

It is A cat, but it is AN orange cat.
It is AN elephant, and it is AN animal.
It is A dog, but it is AN eraser.
It is A fruit, but it is AN apple.
It is A vegetable, but it is AN onion.
It is AN action, AN egg, An idea, AN object, and AN umbrella.

If you think you know the answer, take the quiz to find out.