— I'm making a fruit salad. I need apples, bananas ...
— And about a

of oranges.
— How much milk do your children drink?
— About a

a day.
— My salad is too dry. Where's the

of oil?
— On the kitchen table.
— What do you want from the baker's?
— Only a

of bread.
— What are you bringing Elizabeth for her birthday?
— A

of chocolates.
— Would you like some bread?
— Yes, please. And could I have a

of cheese with that, too?