单选题
In response to the fact that ______, more American students are learning Chinese.
【正确答案】
D
【答案解析】[注释] 注意本题题干中的词组in response to，应该以此词组为信号词，在文章中找到本题的依据句：But the number of younger students is growing in response to China's emergence as a global superpower．D项选择的用词和意思与原文完全一致，所以就能很容易地确认答案。其他选择项的信息与本题依据句的信息不符，所以为错误答案。