People in ancient times ______ series of important events so that we now have what is called history
A.went down
B.kept down
C.set down
D.broke down
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C解析考查词组：
A. went down下来，
B. kept down低落
C. set down记下
D. broke down破裂，抛锚，句意是：古代的人记下系列重要的事，这样我们就有历史了。选C。