【单选题】
I have two elder brothers, ______ in the army for ten years.
A.the elder of whom served
B.the older having served
C.the older of which served
D.the elder one has served
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根据网考网移动考试中心的统计,该试题:
5%的考友选择了A选项
88%的考友选择了B选项
6%的考友选择了C选项
1%的考友选择了D选项