While Yelp continues to fight to protect the users of its platform, the law in the UK makes it surprisingly easy for businesses to______consumers into removing honest reports of their experiences.

A.imitate

B.intimate

C.intimidate

D.intensify

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However, we would not desire for order until we are confronted with chaos, gloominess and unknown, as we would not appreciate security once we are out of danger.

A.estimate

B.understand

C.recognize

D.perceive

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Her legs suddenly felt heavy and weary，as if she walks for miles，instead of strolling a few hundred yards along the old campus paths.

A.should walk

B.had walked

C.would have walked

D.walked

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Learning a second language is tricky at any age (and it only gets tougher the longer you wait to crack open that dusty French book). Now, in a new study, scientists have pinpointed the exact age at which your chances of reaching fluency in a second language seem to
plummet: 10.
The study, published in the journal Cognition, found that it"s "nearly impossible" for language learners to reach native-level fluency if they start learning a second tongue after age 10. But that"s not because language skills start to go downhill. “It turns out you"re still learning fast,” says study co-author Joshua Hartshorne, an assistant professor of psychology at Boston College. “It’s just that you run out of time, because your ability to learn starts dropping at around 17 or 18 years old.” People who start a few years after age 10 may still become quite good at a language, the authors say, but they are unlikely to become fluent.
Kids may be better than adults at learning new languages for many reasons. Children"s brains are more plastic than those of adults, meaning they"re better able to adapt and respond to new information. “All learning involves the brain changing，” Hartshorne says，“and children"s brains seem to be a lot more adept at changing.” Kids may also be more willing to try new things (and to potentially look foolish in the process) than adults are. Their comparatively new grasp on their native tongue may also be advantageous. Unlike adults, who tend to default to the rules and patterns of their first language, kids may be able to approach a new one with a blank slate.
These findings may seem discouraging, but it was heartening for scientists to learn that the critical period for fluent language acquisition might be longer than previously thought.Some scientists believed that the window begins to close shortly after birth, while others stretched it to early adolescence. Compared with those estimates, age 17 or 18 — when language-learning ability starts to drop off 一 seems relatively old.
For the study, the researchers created an online quiz promising to guess peopled native language，dialect and home country based on their responses to English grammar questions.At the end of the quiz, people entered their actual native language, if and when they had
learned any others and where they had liveD.The quiz went viral: almost 670,000 people took it, giving the researchers huge amounts of data from English speakers of many ages and backgrounds. Analyzing the responses and grammar mistakes allowed them to draw unusually precise conclusions about language learning.
The findings also offer insights for adults hoping to pick up a new tongue. People fared better when they learned by immersion, rather than simply in a classroom. And moving to a place where your desired language is spoken is the best way to learn as an adult，says Hartshorne.
If that"s not an option, you can mimic an immersive environment by finding ways to have conversations with native speakers in their own communities, Hartshorne says. By doing so, ifs possible to become conversationally proficient — even without the advantage of a child"s brain.

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As someone who researches generational differences, I find one of the most frequent questions I’m asked is “What generation am I in?”
If you were born before 1980, that’s a relatively easy question to answer: the Silent Generation (91) born between 1925 and 1945; baby boomers were born between 1946 and 1964; Gen X followed (born between 1965 and 1979).
Next (92) millennials, born after 1980. But where do millennials end, and when does the next generation begin? Until recently, I (and many others) thought the last millennial birth year would be 1999 — today's 18-year-olds.
(93), that changed a few years ago, when I started to (94) big shifts in teens’ behavior and (95) in the yearly surveys of 11 million young people that I analyze for my research. Around 2010, teens started to spend their time (96) differently from the generations that (97) them. Then, around 2012, sudden shifts in their psychological well-being began to appear. Together, these changes pointed to a generational cutoff around 1995, (98) meant that the kids of this new, post-millennial generation were already in college.
These teens and young adults all have one thing in common: Their childhood or adolescence (99) with the rise of the smartphone.
A 2015 survey found that two out of three U.S. teens owned an iPhone. (100) this reason, I call them iGen, and as I explain in my new book “iGen: Why Today’s Super-Connected Kids are Growing up Less Rebellious, More Tolerant, Less Happy —and Completely Unprepared for Adulthood”，they’re the first generation to spend their adolescence with a smartphone.
What makes iGen different? Growing up with a smartphone has (101) nearly every aspect of their lives. They spend so much time (102) the internet,texting friends and on social media — in the large surveys I analyzed for the book, an average of about six hours per day — that they have less leisure time for (103) else.
That includes (104) was once the favorite activity of most teens: (105) with their friends. Whether ifs going to parties, shopping at the mall, watching movies or aimlessly (106) around, iGen teens are participating in these social activities at a (107) lower rate than their millennial predecessors.
iGen shows another pronounced break with millennials: Depression, anxiety, and loneliness have shot (108) since 2012, with happiness declining.
The teen suicide rate increased (109) more than 50 percent, (110) did the number of teens with clinical-level depression.

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