完形填空。

　　As my train was delayed(延迟)for two hours, I had plenty of time to spare．After buying some magazines to read on the journey, I gave my wife a long-distance call．Then I 　　1　　 my way to the luggage office for my suitcase, which I had 　　2　　 there 3 days before．There were quite a few people waiting, and I took out my wallet to find the receipt(收据)　　3　　 my case．

　　The receipt seemed not where I had placed it．No matter how 　　4　　 I searched, the receipt was nowhere to be found．

　　When my turn came, I explained the situation carefully but sadly 　　5　　 the assistant．The man looked me 　　6　　 as if to say that he had heard this kind of story many times and asked me to tell him 　　7　　 my case(箱子)was like．I told him that it was an old brown-looking object which was no different 　　8　　 the many cases I could see in his office．The assistant then told me to 　　9　　 a list of what was mainly in the case．If they were 　　10　　, he said, I could take the case away．I tried to remember all the things I had hurriedly 　　11　　 into the case and wrote them down as they came to me．After I had done this, I went to 　　12　　 round the office．There were hundreds of 　　13　　 there．For one 　　14　　 moment, it came to my mind that if someone had picked the receipt he could have easily taken the case already．This had not happened fortunately, for I found the case 　　15　　 in the corner．After examining the things inside, the assistant was satisfied that it was mine, and told me I could take the case away．

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