阅读下列短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。
A
Everyone knows that the media can be and is controlled. Everything that you read on the Internet may not always be true! People have constantly been complaining about lies in the media. So how can we be smart online? Here are some tips and tools:
Check the domain names（域名）.
Many fake（假的） news stories use similar addresses of web pages and domain names. However, a legal domain name usually ends with a ‘.com’, ‘.net’, or ‘.cn’. They are unique. One company only has one domain name.
Visit a fact-checking website.
There are many reliable ones such as FactCheck.org, International Fact-Checking Network (IFCN), or Snopes. com. Be your own Sherlock Holmes and feel more confident about telling fact from fiction杜撰. Check that the article contains references and links to other news stories, articles and authors. Good news stories are supported by evidence, dates and other data.
Pay attention to quality and timeliness.
Are there noticeable(明显的) grammatical errors? Know this—honorable sources have high proofreading校对 and grammatical standards! Is the story current or recycled? Make sure an older story has not been taken out of context.
Remember, do not believe everything you see, read or hear about your favorite idols. False news travels faster online than real news. Do not decide your opinions and views because of one article you have read or one pictures you have seen. Next time you read an article, hear an opinion, or see a picture, consider the other side of the story.Ask. Think. Check.
（ ）21. Which of the following is probably fake news?
A. It appears on web pages with unique domain names.
B. It contains references and links to other stories.
C. The news has a few grammatical errors.
D. The story of the news is taken out of context.
（ ）22. How to tell real news from fake news?
A. By finding a detective to help you. B. By confirming information via IFCN.
C. By focusing on the story itself. D. By referring to reference books.
（ ）23. What attitude should we take towards news online?
A. Trusting. B. Negative. C. Doubtful. D. Supportive.
