There are ... camels in the zoo.
some
This is ... ostrich.
an
Are there ... biscuits?
any
There aren't ... mice.
any
Have you got ... pencil?
a
Are there ... sandwiches?
any
Has he got ... bananas?
any
I can see ... panda.
a
There aren't ... cucumbers.
any
There aren't ... presents.
any
I've got ... orange.
an
There isn't ... egg in the fridge.
an
She has got ... apples.
some
Have you got ... lemon?
a
Is it ... elephant?
an
We haven't got ... carrots.
any