An old friend was going to spend a few days with me. He called from the airport to tell me he had
arrived. I was not able to   1   the office, but I had prepared for his arrival. After telling him my new    2    
address，I told him that I had     3     the key under the doormat (门前的擦鞋垫). I knew it would be
quite late    4     I could get back. He could make    5 at home and eat any food that was in the
refrigerator.
    Two hours later he   6    me from the house. At the moment, he said he was listening to
some of my    7    after having a nice meal. He had found the   8   and cooked some fish and had also
helped himself   9    some juice. He hoped I would    10    him soon. I asked him if he had any difficulty
in finding the house. He answered the   11   problem was that he couldn't find the key under the doormat, but    12    , the living-room window by the apple tree was    13    and he had climbed in through the
window. I listened to all this in great    14    .There are no apple trees outside my windows, but there   15   only one by my neighbor's house !