A、It is very difficult to learn. B、It is rarely known by people. C、It has the same root with Italian. D、It is very easy to learn

Today I’d like to talk about the relationship between music and remembering a foreign language. Researchers at the University of Edinburgh found that remembering words in a song was the best way to remember even one of the most difficult languages.
    Researchers took 60 adults and randomly split them into three groups of 20. Then they gave the groups three different types of "listen-and-repeat" learning conditions.
    Researchers had one group simply speak the words. They had the second group speak the words to a rhythm, or beat. And they asked the third group to sing the words.
    All three groups studied words from the Hungarian language for 15 minutes. Then they took part in a series of language tests to see what they remembered.
     (19)Why Hungarian, you ask? Researchers said they chose Hungarian because not many people know the language. It does not share any roots with Germanic or Romance languages, such as Italian or Spanish.
    After the tests were over, the singers came out on top.
    The people who learned these new Hungarian words by singing them showed a higher overall performance. They did the best in four out of five of the tests. They also performed two times better than those who simply learned the words by speaking them.
    Dr. Katie Overy supervised the study at the university’s Reid School of Music. She says singing could lead to new ways of learning a foreign language.(20)The brain, it seems, likes to remember things when they are contained in a catchy, or memorable, tune.
    Dr. Karen Ludke said the findings could help those who struggle to learn foreign languages. On the University of Edinburgh’s website Dr. Ludke writes, "This study provides the first experimental evidence that a listen-and-repeat singing method can support foreign language learning. "
    Language teachers already know the value of using music and singing.
    A teacher at a Chinese language school in Washington, D. C. relies heavily on songs and chants to teach Chinese. Hua Zhuying teaches students who most likely have never spoken Chinese before coming to the school. Ms. Hua says she uses music all the time to teach children Chinese.
    "(21)For example, for little kids we usually will use English songs but we are teaching them the Chinese lyrics. So it’s easy for them to start because they know the music. They just need to translate into Chinese words. "
    She adds that not only does it work, but it is fun for the kids.
    That’s all for today’s lecture. Thank you for listening.
19. Why did the researchers choose Hungarian?
20. When is the brain likely to remember things?
21. How does Ms. Hua teach children Chinese?