{#blank#}1{#/blank#}crowd of more than 22,000 people gathered near Las Vegas' famous Mandalay Bay Hotel{#blank#}2{#/blank#}the Route 91 Harvest Festival. Without{#blank#}3{#/blank#}(expect), from the hotel's 32^nd floor, a gunman opened fire on the people below,{#blank#}4{#/blank#} (kill)59 people and at least 500 injured. It was the most{#blank#}5{#/blank#}(dead)shooting in US history. President Donald Trump described{#blank#}6{#/blank#}as “an act of pure evil”. He ordered US flags to be{#blank#}7{#/blank#}(fly)at half-staff to honor those{#blank#}8{#/blank#}died. “In moments of tragedy and horror, America comes together as one. And it always {#blank#}9{#/blank#}(have),” Trump said{#blank#}10{#/blank#}(Politician) around the world offered their support for the United States.

    Nobody wants to be aged, but{#blank#}1{#/blank#}it comes to visiting cities, most of us want to visit the world's oldest cities. Luoyang is one of the oldest and most {#blank#}2{#/blank#}(attract) cities in the world that I'd like to recommend to you.

    Luoyang stands out{#blank#}3{#/blank#}The oldest continually inhabited (持续居住的) city in Asia. The city is considered to be{#blank#}4{#/blank#}birthplace of Chinese culture and history as well as being one of the Seven Ancient Capitals of China. There  {#blank#}5{#/blank#} (be) no other city in China that has seen so many{#blank#}6{#/blank#}dynasty) like Luoyang.

    With such a long and exciting history, Luoyang has really a lot{#blank#}7{#/blank#}(offer). The longmen Grottoes(龙门石窟), which{#blank#}8{#/blank#}(include) in the world Heritage List since 2000, and many historic Buddhist temples{#blank#}9{#/blank#}(constant) attract tourist from all over the world. Luoyang is also famous for the White Horse Temple, the earliest Buddhist temple{#blank#}10{#/blank#}build) in China. Are you anxious to visit the city?

    Eyes closed, she felt the cool breeze on her face as the car drove past the green grassland. The breeze gave her a sense of {#blank#}1{#/blank#}(free) and happiness. The breeze suddenly {#blank#}2{#/blank#}(come) to a stop with the car stopping due to the traffic {#blank#}3{#/blank#}(create) by sheep. Climbing out of the car in excitement, she realized she was in a new world in {#blank#}4{#/blank#} her only companion was the beauty of nature all around her. {#blank#}5{#/blank#}(stand) there, she finally understood the meaning of happiness! She thought she was the {#blank#}6{#/blank#}(happy) person in the world at that moment.

    In this fast­paced world, we've forgotten the simple pleasures in life. Just stop for a moment to ask yourself how long it has been since you sat down for a while, {#blank#}7{#/blank#}(absolute) doing nothing but still feeling perfectly happy? People tend to find happiness in goods or {#blank#}8{#/blank#}(thing) around them. But the perfect place to start searching for happiness is right within you! True happiness is said to be achieved when we are the reason behind a person's beautiful smile and huge happiness!

    So {#blank#}9{#/blank#} next time you see someone upset or feeling low, lend them a bit {#blank#}10{#/blank#} your time and support. It doesn't cost much, but doubles the happiness in your heart!

    Scientists found that air pollution may be responsible {#blank#}1{#/blank#} a significant reduction in intelligence. The research conducted by the World Health Organization (WHO) in China {#blank#}2{#/blank#} (show) that air pollution led to big falls in test {#blank#}3{#/blank#} (score) for languages and arithmetic. The study is called "The impact of exposure to air pollution on cognitive (认知的)performance ". It was published in the Proceedings of the National Academy of Sciences journal. The study took place over four years. Researchers analyzed speaking and arithmetic tests taken by 20 000 people of all ages. They said, "Polluted air may prevent cognitive ability {#blank#}4{#/blank#} people become older.”

    The study is a warning to the rest of the world, {#blank#}5{#/blank#} (especial) to those in cities. Over 91 percent of the world population live in areas with {#blank#}6{#/blank#} (poison) air and air pollution is the {#blank#}7{#/blank#} (four) highest cause of global deaths. Researchers discovered that {#blank#}8{#/blank#} longer people were exposed to polluted air, the greater their intelligence went down. They said air pollution caused a year's worth of lost education. For those {#blank#}9{#/blank#} were over 60 years old, this could be several years. A researcher warned, "There is no shortcut {#blank#}10{#/blank#} (solve) this issue. Governments really need to take effective measures to reduce air pollution."