Questions 11 to 15 are based on the following passage.

　　I don't often lose things and I'm especially careful with money, so I was quite surprised when I reached for my wallet and it wasn't there. (79) At first, I thought it was possible tht I could have left it at home. Then I remembered taking it out to pay for the taxi, so I knew I had it with me just before I walked into the restaurant. I wondered if it was possible that it could have slipped Out of my pocket while I was eating dinner. Thinking about that possibility, I turned and walked back to the table where I had been sitting. Unfortunately, thare rere several people sitting at the table at the time, so I called a waiterand explained to him that my wallet had fallen out of my pocket while I was sitting at that table a few minutes earlier. (80) 1 had the waiter go over to the table to see if my wallet was on the floor. While the waiter was looking for it, the manager of the restaurant came up to me and asked me if anything was wrong. I didn't want to get a lot of people involved in the problem, but I knew I had to get the wallet back. I told the manager what had happened. He had me describe the wallet to him, and then he insisted that I report the missing wallet to the police. I told him that I had an appointment with my doctor in just a few minutes. I explained to him that my biggest worry at the moment was how I was going to pay the check. He told me not to worry about that. He had me write down my name and address, and he said he could send me a bill.

　　11. According to the passage, we know the writer_.

　　A. seldom loses things B. very often loses things

　　C. loses things once in a while D. never loses things

　　12. That day the writer found_.

　　A. he had lost his wallet B. he had left his wallet at home

　　C. his wallet was stolen by a thief D. his wallet was lying under the table

　　13. Why was the writer so sure he had brought his wallet with him?

　　A. He remembered not having left it at home.

　　B. He believed his own memory.

　　C. He always felt his pocket for the wallet before he left home.

　　D. He had taken it Out to pay the taxi-driver.

　　14. According to the passage, the writer most probably lost his wallet when_.

　　A. he took it out to pay for the taxi B. he walked into the restaurant

　　C. he was eating dinner D. he was ordering his dish

　　15. The writer walked back to the table where he had been sitting because_.

　　A. he was sure his wallet was still there

　　B. there might be a possibility of getting back his wallet

　　C. he saw the wallet lying on the floor near the table

　　D. he could ask someone there about his wallet

　　答案：AADCB