问题
单项选择题
It （）quite a few years （）the accused was declared innocent and set free．
A.was；since
B.is；that
C.will be；when
D.was；before
答案
参考答案：D
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It （）quite a few years （）the accused was declared innocent and set free．
A.was；since
B.is；that
C.will be；when
D.was；before
参考答案：D