Can you imagine the world full of crying and shouting, covered in darkness? However, it's not just a joke. It's a real {#blank#}1{#/blank#} (describe) of a world without happiness and laughter.

    If you compare our life to a pie, what would you put in if you were in charge of making the pie?{#blank#}2{#/blank#} (obvious), many people would add as much happiness as possible. Do you know why? It's {#blank#}3{#/blank#} happiness stands for sweetness in most people's minds.

    Don't think of it just as a comparison. Happiness is a flower {#blank#}4{#/blank#} (live) in the sunshine, and it is not difficult to reach for it. We have a variety of {#blank#}5{#/blank#} (emotion) like sadness, anger, fear, enthusiasm and happiness, and they all appear naturally when something {#blank#}6{#/blank#}(affect) our feelings. So, if we can change our attitude {#blank#}7{#/blank#}things in the world, we can certainly adjust our emotions. It means that we can choose to be happy if we want to, as long as we view everything in {#blank#}8{#/blank#} positive way.

    If we can be happy, why not {#blank#}9{#/blank#}(choice) to be? Let's try together to create a world {#blank#}10{#/blank#}(fill) with smiling faces and sunshine.

    You see them everywhere: people walking with their attention {#blank#}1{#/blank#}（concentrate）on their smartphone screens on busy streets. But walking and texting can be dangerous and cities in the United States and Europe have stepped {#blank#}2{#/blank#} their efforts to deal with it.

    In Honolulu, using the phones while crossing the street is forbidden. It has passed a law that says “No pedestrian （行人） shall cross a street or highway while viewing a mobile electronic device. In other words, do not look at a screen when you cross the street{#blank#}3{#/blank#} you could be fined. Honolulu is the first major U.S. city{#blank#}4{#/blank#} （forbid）what is called “distracted walking”.

    People {#blank#}5{#/blank#} text while walking are nearly four times as likely to have at least one dangerous action. A lot of people do it {#blank#}6{#/blank#} they know it is dangerous. They tell themselves that it is important.

    Using phones while walking may lead to injuries and deaths, but it seems to be a global problem. Pedestrian deaths {#blank#}7{#/blank#}（increase）as the use of cell phones rises in the past 5 years, and it is expected that the tendency will continue.

    Other cities have come up with creative ways to help protect those using cellphones while walking. A small town near Amsterdam has set up special crosswalks with flashing lights on the ground. When the traffic lights turn red or green,{#blank#}8{#/blank#} do the lights on the ground, reminding pedestrians when it's safe to cross. In a town of Germany, similar lights were used after a teenager using her smart phone was hit and seriously{#blank#}9{#/blank#}（injure）.

    If you still want to text while walking you could avoid being fined in Honolulu {#blank#}10{#/blank#}using voice-controlled digital assistant（数字助手） like Siri or Google Assistant Or you could just wait until you are again, safely off the street.