A man was walking through a large city. On a street corner，he saw a boy {#blank#}1{#/blank#}(sell) a number of small birds in a cage(笼子)．

    He looked at the birds flying about in the cage and {#blank#}2{#/blank#}（try）to get out. He stood for some time looking at the birds .At last he said to{#blank#}3{#/blank#}(冠词)boy，“How much do you ask for your birds？” “Fifty cents a bird，sir，” said the boy. “I {#blank#}4{#/blank#}(not) mean how much a bird，” said the man，“{#blank#}5{#/blank#} (连词)how much for all of them? I expect to buy{#blank#}6{#/blank#}（it） all.”

    The boy began to count，and found they came to five dollars. “There is your money，” said the man. The boy took it {#blank#}7{#/blank#}(happy).Then the man opened the cage door as quickly as he could，and let all the birds {#blank#}8{#/blank#}(fly)away.

    The boy，in great surprise，cried，“What did you do that{#blank#}9{#/blank#}（介词），sir？You have lost all your birds.”

    “I will tell you why I did it，” said the man.“ I has been shut up for three years in a prison(监狱), and I{#blank#}10{#/blank#}decide) never to see anything in prison which I can make free.”