问题
单项选择题
Playing a major role in the economic life of the United States, ______.
A. women currently make up 46 percent of the work force
B. currently women make up 46 percent of the work force
C. the work force is currently made up of 46 percent women
D. 46 percent of the work force is currently made up of women
答案
参考答案：A
解析： 结构识别
本句前半部分是分词短语作状语；由于主句主语应与分词短语主语(women)一致， currently是副词，修饰谓语；因此A为答案。