Samuel Langhorne Clemens, more commonly {#blank#}1{#/blank#} (know) as Mark Twain, was born on November 30, 1835 in Florida. Twain is considered{#blank#}2{#/blank#} greatest author and humorist of the 19th-century American literature (文学).

    In 1839 the Clemens family moved to Hannibal, Missouri, on the Mississippi River where he was brought {#blank#}3{#/blank#}. Like many authors of his day he had little formal education. His education came from the print shops and newspaper offices {#blank#}4{#/blank#} he worked as a youth. In 1853 Twain left Hannibal to travel. On a trip to New Orleans he persuaded a riverboat pilot {#blank#}5{#/blank#} (teach) him his skill. By the spring of 1859 Twain was a licensed riverboat pilot.

    After a(n) {#blank#}6{#/blank#} (success) attempt at gold and silver mining he joined the staff of a newspaper in Virginia City, Nevada. He first wrote under the pen name Mark Twain in 1863. 

    He continued to travel as a reporter for various newspapers, and in 1869 his travel letters from Europe {#blank#}7{#/blank#} (collect) into the popular book The Innocents Abroad. Between 1873 and 1889 he wrote seven novels {#blank#}8{#/blank#} (include) his Mississippi River books.

    {#blank#}9{#/blank#} Twain's life and career progressed he lost much of the humorous style of his earlier years. What was expressed more and more in his later works was {#blank#}10{#/blank#} human beings are selfish. Even so Twain is best remembered as a great humorist.

    An American boy went {#blank#}1{#/blank#}(miss) three days ago, {#blank#}2{#/blank#} has received people' great interest. Several people gave different descriptions of his {#blank#}3{#/blank#}(disappear).

    His sister, {#blank#}4{#/blank#}(age) nine, says she heard her brother {#blank#}5{#/blank#}(return) home at about 11p.m. When she went to bed, she was frightened at lots of strange creatures {#blank#}6{#/blank#}(stand) inside a spaceship outside. She is sure the aliens took her brother.

    His parents became worried and called the police when their son didn't show {#blank#}7{#/blank#} for lunch the next day.

    Some people also say that aliens took one of them aboard the UFO so that they could do research on her. {#blank#}8{#/blank#}(luck), she returned safely.

    When {#blank#}9{#/blank#} (ask) about the possibility that the boy was taken by aliens, the police say {#blank#}10{#/blank#}they haven't dismissed the idea, they will not give up until they find out what happened.

    The fire at Notre Dame Cathedral in Paris has raised questions about the condition of thousands of other cathedrals and historic {#blank#}1{#/blank#} (structure) across Europe. It also raises questions about whether European governments are doing enough {#blank#}2{#/blank#} (keep) up and care for such buildings.

    Tibor Navracsics, the European Union's top culture official, told The Associated Press that "we are so used to our outstanding cultural heritage that we tend to forget that it {#blank#}3{#/blank#} (need) constant care and attention." Some people say the fire was a wake-up call, not just for Europe, {#blank#}4{#/blank#} the whole world.

    Large fires have long robbed humanity {#blank#}5{#/blank#} knowledge, art and treasures. In 2015, the German engineering company Siemens {#blank#}6{#/blank#} (find) that Scotland had about ten {#blank#}7{#/blank#} (damage) fires a year, while England lost at least a dozen listed buildings a year. In Germany, seventy historic buildings have been {#blank#}8{#/blank#} (heavy) damaged since 2000.

    Experts say that {#blank#}9{#/blank#} is needed is continuous attention and maintenance. Some say world-renowned monuments like Notre Dame are the driving force behind tourism and should get more respect. Quaedvlieg-Mihailovicis, who heads the heritage group Europa Nostra, noted the {#blank#}10{#/blank#} (important) of such respect. "Cultural heritage is a gold mine. You cannot exploit it and then just leave the mine and go to another one." she said.

    As we all know, the Great Wall of China is one of the greatest {#blank#}1{#/blank#} (sight) in the world—the longest wall in the world ,which {#blank#}2{#/blank#} (consider) the symbol of China and the wisdom of Chinese people.

    With {#blank#}3{#/blank#} long history of more than 2300 years, the "Long Wall" was built in different areas by different dynasties {#blank#}4{#/blank#} (protect) their territorial (领土的) borders. During the construction of the Great Wall, there were many {#blank#}5{#/blank#} (interest) legends and stories, such as Meng Jiang Nü weeping over the Great Wall, a sad {#blank#}6{#/blank#} romantic love story.

    Today, the Great Wall has become a place {#blank#}7{#/blank#} interest not only to the Chinese but also to people all over the world. Perhaps the most {#blank#}8{#/blank#} (wide) famous advertising words in history come from the poetic pen of Chairman Mao: "He {#blank#}9{#/blank#} has never been to the Great Wall is not a true man," Actually, since the Great Wall was opened to the public, hundreds of millions of visitors {#blank#}10{#/blank#} (be) to its various sections.