{#blank#}1{#/blank#} (exact) when the first people arrived in what we now know as California，no one really knows. However, {#blank#}2{#/blank#} is likely that Native Americans were living in California at least fifteen thousand years ago.

Scientists believe that these first settler {#blank#}3{#/blank#} (cross) the Bering Strait in the Arctic to America {#blank#}4{#/blank#} means of a land bridge which existed in prehistoric times. In the 16th century, after the {#blank#}5{#/blank#} (arrive) of Europeans, the native people suffered greatly. Thousands were killed or forced into slavery. In addition, many died {#blank#}6{#/blank#} the diseases brought by Europeans. However, some survived these terrible times, and today there are more Native Americans {#blank#}7{#/blank#} (live) in California than in any other state.

    In the 18th century, California was ruled by Spain. Spanish soldiers first arrived in South America in the early 16th century. Two centuries later, the Spanish had settled in most parts of South America and along the northwest coast of {#blank#}8{#/blank#} we now call the United States. Of {#blank#}9{#/blank#} first Spanish to go to California, the majority were religious men, whose ministry was {#blank#}10{#/blank#} (teach) the Catholic religion to the natives.

    There are many benefits of singing in a choir. They range{#blank#}1{#/blank#}the social: having the opportunity {#blank#}2{#/blank#}(make)new friends, to the physical benefits of learning to breathe {#blank#}3{#/blank#}(proper). Research has also shown that young people {#blank#}4{#/blank#}sing in choirs do better in their studies and have{#blank#}5{#/blank#}tendency to be healthier.

    But the first question you should ask{#blank#}6{#/blank#}(you)if you are considering joining a choir is “can you sing in tune?” It might seem obvious, but{#blank#}7{#/blank#}you can, there is little point in seeking out a choir because you'll only get rejected. Every choir you apply to join is going to audition(面试)you. Don't worry if you can't read music; that can be taught later. If you {#blank#}8{#/blank#}(accept), you'll find choir practice to be hard work, but great fun, because they're social events as much as music training. You will learn to read music and how to sing with confidence. Your voice and technique will develop, probably quite quickly with proper {#blank#}9{#/blank#}(instruct), and you may just end up{#blank#}10{#/blank#}(wonder)why you didn't do this years ago.

    Millions of people in cities across Asia are using phone apps to borrow bicycles for local travel. This kind of technology is made for people who want to leave {#blank#}1{#/blank#} (car) and motorcycles at home, and avoid {#blank#}2{#/blank#} (spend) money on a taxi service.

    As {#blank#}3{#/blank#} (report) on TV, bicycle sharing has been rising in popular places like Beijing and Singapore. The two-year bike-sharing trend（趋势）has put over 16 million bikes in China alone, {#blank#}4{#/blank#} has cut car use and demand for gas. “I often use bike-sharing service because it's very {#blank#}5{#/blank#} (use),” said Wei Zhang, who uses a shared bike several times a week {#blank#}6{#/blank#} (go) to work.

    “Bike-sharing {#blank#}7{#/blank#} (be) crazy since late last year,” said Harry Liu, who works as an advisor for HIS Market. He added that more people are using public transport {#blank#}8{#/blank#} the reason that they can finish their trip with a shared bike.

    Last month, {#blank#}9{#/blank#} Chinese bike-sharing start-up company opened offices in Kuala Lumper, Bangkok and Washington D. C. The company, {#blank#}10{#/blank#} (found) in April 2016, is called Mobike. Another Chinese company, ofo, provides a similar service.

    It is well known that the Chinese have great respect for their elders, and here is an occasion to show it-the Chongyang Festival. It falls {#blank#}1{#/blank#} the ninth day of the ninth lunar month. In Chinese, nine {#blank#}2{#/blank#}(regard) as the number of "yang". The ninth day of the ninth month is the day that has two "yang" numbers, and "chong" in Chinese means double, which is {#blank#}3{#/blank#} the name "Chongyang" came into being.

    The festival can date back to the Warring States Period. However, it was not {#blank#}4{#/blank#} (formal) set as a festival until the Tang Dynasty. In 1989, the Chinese government {#blank#}5{#/blank#}(declare)the ninth day of the ninth lunar month to be Seniors' Day-a day to respect {#blank#}6{#/blank#} elderly and to let them enjoy {#blank#}7{#/blank#}(they).

    Traditionally, people climb mountains, drink chrysanthemum (菊花) wine, and eat double-ninth cakes. Since cake in Chinese is pronounced "gao" meaning"high", people consider climbing a high mountain to be the same as eating cake in the hope of {#blank#}8{#/blank#} (promote) to high positions. And people often think that chrysanthemum wine can get rid of all kinds of diseases and {#blank#}9{#/blank#}(disaster).

    Today many activities are held {#blank#}10{#/blank#}(show) respect for the seniors like organizing a trip for them, sending them gifts and more on the day of the festival.