{#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.

    Chuck Wall teaches management and human relations at Bakersfield College. One day, he told his students that their homework was to perform a simple and random act of kindness. Not  {#blank#}1{#/blank#}(understand) the homework, the students didn't know what to do. Chuck didn't answer their questions. {#blank#}2{#/blank#},he encouraged his students to work it out by themselves.

    One week later, the students entered the classroom and began sharing their stories {#blank#}3{#/blank#}(excited). One student reported helping a poor dog {#blank#}4{#/blank#} (abandon) by its owner. Another student told others about giving blankets away to the homeless. Gradually, more and more students developed the habit of doing such kind acts, from {#blank#}5{#/blank#} they benefited a lot.

    Since then, similar kind acts{#blank#}6{#/blank#} (perform) in schools around the world. Many schools organize a Random Acts of Kindness Week{#blank#}7{#/blank#}(celebrate) World Kindness Day. Some schools use each day of the Random Acts of Kindness Week to perform a {#blank#}8{#/blank#}(differ) kind act, such{#blank#}9{#/blank#} making a new friend, helping someone, doing community service or raising money for a charity. In this way, students learn to consider other people and think about how small actions can make the world a{#blank#}10{#/blank#} (good) place.

    China has always been famous for being a “State of Etiquettes (礼仪)”. According to {#blank#}1{#/blank#} (history) documents, as early as 2,600 years ago, this nation has already established a thorough set {#blank#}2{#/blank#} dining etiquettes. A famous 19th century Russian writer, Anton Chekhov, once invited a Chinese man {#blank#}3{#/blank#} (have) a drink in a bar. Chekhov said, “Before drinking from his cup, he held {#blank#}4{#/blank#} with his hands and presented to me and the bar owner and bar tenders, {#blank#}5{#/blank#} (say) “qing (please).” This is the custom of China. They are not like us to finish it in one drink, {#blank#}6{#/blank#} prefer to drink by taking a small amount at a time. With every sip (一小口), he {#blank#}7{#/blank#} (eat) some food. Afterwards he handed me some Chinese coins to show {#blank#}8{#/blank#} (grateful). This is a rather interestingly polite nationality. This was the most valuable opinion of a Chinese person {#blank#}9{#/blank#} was given by a foreigner two centuries ago. Chinese traditional dinner procedures used to be long and dealt seriously with. The {#blank#}10{#/blank#} (important) the occasion, the more complex the procedures were.

    My wife and I like watching plays, so we will go to the theater whenever we have time. But before we buy tickets, we would like to know if the play is good or bad. When a new play comes, we{#blank#}1{#/blank#} (usual) read the newspaper to get information about it. Last week a new play was put on at the theater. The newspaper said it was very{#blank#}2{#/blank#} (interest) so we decided to go on Saturday night. My wife took a long time to make her {#blank#}3{#/blank#} (decide) about what to wear and we left our house a little late. {#blank#}4{#/blank#}the time we got to the theater, the first act had already{#blank#}5{#/blank#} (begin). After the play was over, we met some friends,{#blank#}6{#/blank#} lived next to us several years ago. Then we went dancing. By the time we got home, it was about two o clock in the morning. I'm not used to{#blank#}7{#/blank#} (stay) out so late and I was {#blank#}8{#/blank#} (extreme) tired.

    When I was younger, I did not have the money to go out for {#blank#}9{#/blank#}evening like this. Though I can afford it now, I don't have the energy{#blank#}10{#/blank#} (enjoy) it.

    China's Chang'e 5 mission {#blank#}1{#/blank#} (successful) delivered samples of moon rocks and dust to Earth on December 17, 2020. It marks {#blank#}2{#/blank#} first time in 44 years that moon rocks have been brought back to our planet.

    The sample capsule landed in Inner Mongolia {#blank#}3{#/blank#} a little after 2:00 a.m. Thursday local time. The drop-off was the ending of a 23-day mission that began on November 23, {#blank#}4{#/blank#} China sent up Chang'e 5 from a site on Hainan Island. The mission's goal was {#blank#}5{#/blank#} (collect) at least four pounds of material and bring it back to Earth.

    The material collected by Chang'e 5 was from a site in the northwest region of the moon's near side. This area was formed more recently, and the rocks here {#blank#}6{#/blank#} (think) to be only about 1.2 billion years old now. That means scientists {#blank#}7{#/blank#}(study) the material could learn more about the {#blank#}8{#/blank#} (evolve) of the moon.

Although Chang'e 5 was a short mission, it was one of {#blank#}9{#/blank#} (complex) projects undertaken by the Chinese space program so far. The country is far from done with the moon—Chang'e 6, {#blank#}10{#/blank#} (it) second lunar sample return, is ready to launch in 2023 or 2024.