Now you may find that more and more children arc becoming very heavy．Why? Maybe there're three main {#blank#}1{#/blank#} ．

    Firstly，there are too {#blank#}2{#/blank#} shops around schools．The shops sell unhealthy foods，such as fried chicken and ice cream at low prices．So some children don't like to eat at home．If there are fewer of these shops，then probably children will {#blank#}3{#/blank#} less unhealthy food．

    Secondly，children have {#blank#}4{#/blank#} eating habits．They like fast food．Today we can see McDonald's and KFC everywhere．Many children like fast food very much．In fact．most of the fast food is unhealthy {#blank#}5{#/blank#} it has too much salt（盐），sugar and fat(脂肪)．

    Thirdly，these days children {#blank#}6{#/blank#} little exercise．When they get home，they sit before the televisions or their computers and play computer games．It's not a good habit，and it also gives them time to eat more unhealthy food．They should go {#blank#}7{#/blank#} and play sports or games．

    For children's health，parents should ask children to do more sports and eat {#blank#}8{#/blank#}fast food．

—It's a{#blank#}1{#/blank#}.

    Building an app is a big project. If you want to build the next great smart phone app alone, you need a plan. First, think about {#blank#}1{#/blank#} to build. Will your app be a game? Will it be for business? Then make a schedule for building {#blank#}2{#/blank#} app. You need plenty of time for researching and getting enough information {#blank#}3{#/blank#} you can build your app.

    Now you're ready {#blank#}4{#/blank#} (start) the app. Building an app is like a puzzle with many different parts, you can build it yourself or find a friend to help you. There are many websites and {#blank#}5{#/blank#} (video) which can teach you to build one. Some websites provide app developers {#blank#}6{#/blank#} "building blocks". As you build one, you pick blocks from the websites and put {#blank#}7{#/blank#} (they) in your app.

    After you build your app, you need to check it {#blank#}8{#/blank#} (careful). Look for bugs. Most apps have several problems to fix. Show your app to people and ask their opinions. Make sure everything {#blank#}9{#/blank#} (work) before letting people download it. There are so many tools that can help you build apps. Having the right tools will make the work much {#blank#}10{#/blank#} (easy). Now almost anyone can make a new app.

— Because I am going to have a meeting in five minutes.