根据短文理解，从A、B、C、D四个选项中选择最佳答案填空。

    Every year students in many countries learn English. Some of these 1 are children, others are young people. Why do all these people want to learn 2?

    It is 3 to answer this question. Many boys and girls 4 English at school. It is one of their 5. Many people learn English because it is 6 in their work. Some young people learn English for their 7 studies because some of their books are in English. Other people learn English because they want to 8 newspapers in English. Some people learn English because they want to 9 in the USA, England or Australia. English is very 10 in our life.