Sarah Hutchins is a young girl．She has won a prize from Amazon．com in a competition{#blank#}1{#/blank#}young inventors． Sarah invented “ camoculars ”by putting binoculars(双筒望远镜) and a camera together．She was one of thousands of young  people who {#blank#}2{#/blank#}their ideas to Amazon．com the company mat organized the competition．

    Sarah was at a concert when she thought of {#blank#}3{#/blank#}invention．“I was sitting a long way from the stage and I was watching the band through my binoculars．While I was{#blank#}4{#/blank#}，I thought，'I'd love to be able to take a picture of this !”Then I got a(n){#blank#}5{#/blank#}．Why not have binoculars with a camera inside them?”

    When she got home，she {#blank#}6{#/blank#} a pair of binoculars and a  cheap camera  and put them together．Her sister was watching her and told her about the {#blank#}7{#/blank#}．So Sarah sent her idea to Amazon．com and two months later, she got a surprise．

    Amazon．com honed to say that she was a(n){#blank#}8{#/blank#}．They didn't give her the top prize，but she won $1，000 and a trip to New York．

“What are you going to invent{#blank#}9{#/blank#}?”asked some people． “I don't know，” said Sarah．“{#blank#}10{#/blank#}you just sit there and think，you won't invent anything because you get ideas at strange moments．The only thing I can do is keep my eyes and ears open!”

    Others say the term comes from an old way of {#blank#}1{#/blank#} business accounts. In the past, losses were recorded in red ink and profits（利润） in black ink. On the day after Thanksgiving Day, many companies in America began to make a profit, and many hoped to {#blank#}2{#/blank#} a profit (recorded in black ink)from then on. That's why the day is called Black Friday.

    In order to make {#blank#}3{#/blank#} profits on that day, many shop owners began to offer sales to people. Step by step, Black Friday {#blank#}4{#/blank#} an important shopping day. Since 2002, it has been the biggest shopping day of the year in America.