—Sorry, I didn't have enough time. I really regret ______ my homework earlier.

    China, which boasts epochal (划时代的) inventions in ancient times, has once again proved its ability{#blank#}1{#/blank#} (change) the world with its “new four great inventions”: high-speed railways, electronic payments, shared bicycles and online shopping. The new four great inventions are all related to China's high-tech innovation, which improved the quality of people's lives.

My wallet is no longer in use. I can buy and eat whatever I want {#blank#}2{#/blank#} (simple) with a tap of my phone, and even pancake sellers are using Alipay ( mobile payment).

    The bikes {#blank#}3{#/blank#} (them) are not new, but the operating model of bike-sharing {#blank#}4{#/blank#} (base) on satellite navigation (导航) system, mobile payment, big data and other high technologies. Shared bikes are bringing cycling back{#blank#}5{#/blank#}people's lives... and they are making public transport more attractive and convenient, and {#blank#}6{#/blank#} (encourage) people to be more active.

    It is increasingly clear that China is innovating (创新) and no longer copying western ideas. It is increasingly clear that China is leading in many {#blank#}7{#/blank#} (way) such as social messaging app WeChat. This is partly{#blank#}8{#/blank#}China skipped over the PC era-and went directly to mobile. China has the largest mobile use in the world.

    {#blank#}9{#/blank#} growing number of foreigners hope to promote economic {#blank#}10{#/blank#} ( develop) in their home countries by highlighting (聚焦) the need for technological achievements like that of China.

    The colors red, white and blue, along {#blank#}1{#/blank#} the stars and stripes on the American flag, all represent different things. Red represents {#blank#}2{#/blank#} (strong) and bravery, white means virtue, and blue stands for hard work and {#blank#}3{#/blank#} (just). There are fifty stars on the flag, one for each state,{#blank#}4{#/blank#} (represent) the union of fifty states {#blank#}5{#/blank#} one country in a federal system. The thirteen stripes are {#blank#}6{#/blank#} (remind) people of the thirteen colonies that {#blank#}7{#/blank#} (join) together to fight for independence from Britain. Each year on 4 July, the USA celebrates Independence Day,{#blank#}8{#/blank#} the Stars and Stripes {#blank#}9{#/blank#} be seen all over the country,{#blank#}10{#/blank#} (light) by fireworks in the night sky.

    Every day many teens wake up afraid of{#blank#}1{#/blank#} (go) to school. School bullying(校园欺凌) is a problem{#blank#}2{#/blank#} affects millions of students, and it makes everyone{#blank#}3{#/blank#} (worry), not just the kids. Yet because parents, teachers and other adults don't always see it, they may not understand how bad bullying can be.

    School bullying can threaten students' physical and emotional{#blank#}4{#/blank#} (safe) at school and can influence their ability to learn. There {#blank#}5{#/blank#} (be) a number of things you can do to make schools safe and prevent bullying.

    For younger kids, the best way of solving the bullying problem is to tell a trusted adult. For teens, the tell-an-adult way depends on the bullying situation. If you see or hear someone {#blank#}6{#/blank#} (beat), you should step in {#blank#}7{#/blank#} (stop) the bullying right away.  If you cannot stop it by{#blank#}8{#/blank#} (you), then find someone who can. It is important to keep the bully away from the person he or she is bullying. Do not force the two parties to be in the same room together. Bullying is a problem that can cause serious damage unless the problem {#blank#}9{#/blank#} (solve) in time. Take any bullying that you hear about very {#blank#}10{#/blank#} (serious). You might even need to call the police in some situations.