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Itquiteafewyearstheaccusedwasdeclaredinnocentandsetfree.A.was;sinceB.is;thatC.willbe;whenD.was;before

题目详情
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
▼优质解答
答案和解析
D 如将A项中was, since改成is, since是正确的;即从句中谓语先发生。如用B项,是强调句,而强调句前后两个谓语动词在时间上必须一致(a);被强调部分能还回原句中(b),即因为句中was declared是过去...