【单选题】
It is high time that something ______.about the traffic problems in Beijing.
A.was done
B.will be done
C.should be done
D.should have been done
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根据网考网移动考试中心的统计,该试题:
61%的考友选择了A选项
7%的考友选择了B选项
29%的考友选择了C选项
3%的考友选择了D选项