根据短文理解，从给出的A、B、C三个选项中选择最佳答案填空。

    Many of you are studying English and you may be 1 why it is so difficult to learn. It's actually not too difficult to learn2you know some3about the language and culture that it reflects(反映). Perhaps the first thing you need to know about English is that it is made up of several other languages 4French, German, Latin, Greek and Anglo—Saxon. In addition, there are words 5 Spanish in English and many American Indian words and names, even some Chinese and Japanese 6 can be found in the English language. This borrowing of words 7 other languages is 8 of the key reasons9 some of the difficulties that people meet with(遇到) 10 they are learning English.