[综合题]
完形填空。从下列单词中选择适当的词填空，每个词只能用一次。with       taking       which       if

since      have          for            at

that        where        to             possible 
     I don’t often lose things and I’m especially careful with money, so I was quite surprised when I reached ______ my wallet and it wasn’t there. At first, I thought it was ______ that I could have left it at home. Then I remembered ______ it out to pay for the taxi, so I knew I had it ______ me just before I walked into the restaurant. I wondered ______ it was possible that it could ______ slipped out of my pocket while I was eating dinner. Thinking about ______ possibility, I turned and walked back to the table ______ I had been sitting. Unfortunately, there were several people sitting at the table ______ the time, so I called a waiter and explained ______ him that my wallet had fallen out of pocket while I was sitting at the table a few minutes earlier.