试题题干
Translate the following sentence into Chinese.
The audience of baseball was instrumental in the transformation of baseball. The battling leagues and team rivalries created a sector for the American public to participate in baseball.
参考答案
试题解析
考点：instrumental起作用的；the transformation of baseball棒球的变革；create a sector for 为···创造了前提。
句子结构：第一句中主干为The audience of baseball was instrumental。第二句主干为The battling leagues and team rivalries created a sector。