【单选题】
In the days when coal was so (widely) used, (no one) realized how soon and how (complete) oil would replace (it).
A.widely
B.no one
C.complete
D.it
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根据网考网移动考试中心的统计,该试题:
2%的考友选择了A选项
26%的考友选择了B选项
71%的考友选择了C选项
1%的考友选择了D选项