Have we got ... bread?
any
Would you like ... lemonade?
some
There is ... apple
an
There are ... eggs
lots of
There are ... potatoes
lots of
There is ... egg
an
There isn't ... sugar
any
There is ... cheese
some
There's ... butter on the bread
some
There's ... big, chocolate cake
a
There aren't ... biscuits
any
I haven't got ... apples
any
There is ... milk
some
There isn't ... water in a glass
any
This is ... orange
an