This is the most important assignment facing American journalism — to make clear to the reader the problems of the day.
A. it
B. that
C. /
D. this
网友回答
A. it
B. that
(答案→)C. /
D. this
解析：考查倒装结构，正常语序是to make the problems of the day clear to the reader句意是：这是面向美国新闻界的最重要的任务---使读者清楚今天的问题。