Examples:
o A rubber duck is floating in the bath.
o An evil monster like him has no friends.
o One page is missing from my cookery book.
o He had a tattoo of a dragon on each arm.
o Every child received a lollipop.
o Both donkeys are braying at the same time.
o A couple of people began to talk louder and louder after the third round of drinks.
o Someone stole several piglets from his farm.
o I think he is putting too many eggs in one basket.
o A number of her friends agreed with her that she looked overweight.
o Illegal loggers cut down a large number of trees.
o A great number of locusts swarmed the area.