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Joan got home late from work today, and she was very happy. When she opened the refrigerator, she was upset. There was nothing to eat for dinner. Joan sat down and made a shopping list. She needed a head of lettuce, a bunch of carrot, a quart of milk, a dozen eggs, two pounds of tomatoes, half a pound of chicken, and a loaf of bread. Joan rushed out of the house and drove to the supermarket. When she got there, she was very disappointed. There wasn’t any lettuce. There weren’t any carrots. There wasn’t any milk. There weren’t any eggs. There weren’t any tomatoes. There wasn’t any chicken, and there wasn’t any bread. Joan was tired and upset. In fact, she was so tired and upset. In fact, she was so tired and upset that she lost her appetite, drove home, didn’t have dinner, and went to bed.