【单选题】
Jean didn't have time to go to the concert last night because she was busy ______ for her examination.
A.to prepare
B.to be prepared
C.preparing
D.being prepared
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根据网考网移动考试中心的统计,该试题:
6%的考友选择了A选项
12%的考友选择了B选项
80%的考友选择了C选项
2%的考友选择了D选项