题目内容：

    Experts say there are about 6，500 languages spoken throughout the world. But the United Nations guesses that about half of these languages are in danger of disappearing.

One organization seeking to save world languages is Wikitongues. It has a simple goal: to provide the tools and support that people need to save their languages. When a language disappears, many other things can go away as well. For example, parts of a community's(社区的)culture. knowledge and identity can also be lost.

Because of this, Udell. co-founder of Wikitongues. believes the process of bringing languages hack must be done by community members themselves. he said. "There is no way an outside organization can save someone's language for them.”

Wikitongues was started in 2016 as an open Internet collection of world languages. The self-described "community" is operated by volunteers from around the world. The collection is in the form of language videos that people speaking the languages add to the Wikitongues website.

Udell says saving languages does count. There are many examples of languages that disappeared but later returned to use. "Hebrew went extinct(灭绝的)in the 4th century BC, and was revived(复兴)in the 1800s. Now once again，it's the mother tongue of half of the world's Jewish population.”Another example is a Native American tribe.  The tribe's language went extinct in the 1940s. But the tribe was able to successfully build up a "language recovery" in recent years.

One of Wikitongues' volunteers is Theron Kolokwe. who lives in Namibia. His native language is Subiya. which is spoken by about 30.000 people.

"I want the world to know about my language,” Kolokwe said. But his goal goes beyond just sharing his language with others through video. He is also working to create a dictionary and language teaching materials that can be used in schools.

1.What does Udell consider important in saving languages?

A. Gathering language information. B. Relying on the language speakers.

C. Setting up an outside organization. D. Combining languages with culture.

2.How does Wikitongues help save languages?

A. By getting language videos from its speakers collected.

B. By building an online dictionary for each language.

C. By creating a real-life community for its speakers.

D. By requiring volunteers to learn new languages.

3.What do the examples in paragraph 5 suggest?

A. The achievements of Wikitongues. B. The influences of languages on life.

C. The significance of saving languages. D. The difficulty with language recovery.

4.What can be a suitable title for the text?

A. Wikitongues Is Struggling to Spread Languages

B. Wikitongues Starts a Language Learning Website

C. Wikitongues Is Bringing Old Languages Back to Life

D. Wikitongues Seeks to Save World's Dying Languages