Tom was down on his luck and felt he needed a few drinks. Hw went to a bar and had several drinks. When he was done, he stood up and walked toward the door. The barman shouted after him, “Hey mister, are you going to pay for those drinks?”

　　Tom turned around and replied, “I have already paid you,” and then walked out of the bar. Almost immediately he saw one of his friends Richard and told him about the barman, “Just go in there and drink all you want, then get up and leave. When the barman asks you to pay the bill, just tell him you have already paid.”

　　This sounded easy enough, so Richard went in and has several drinks. The barman went to him and said, “Before you came in, another man was here. When I asked him to pay his bill, he told me he’d paid, but I don’t remember him paying me.”

　　Richard said, “I would love to stay and hear your story, but I don’t have time. Can I havemy change please?”

　　1. A 2.B 3.D 4.C 5.C