Lisa: I'm hungry. Are there any crisps?
Tom: No, there isn't any but there is a ham sandwich.
Lisa: Great, I'll have the ham sandwich and then an orange. Is there any ice-cream left?
Tom: No, there isn't any ice-cream. I'll go to the supermarket. How many tomatoes are there?
Lisa: There is only one. We should buy some more tomatoes. Oh! How much butter is there?
Tom: There isn't much sugar, too. And we need some sugar, too.