The accident has to be a good thing after all．
A. turnedout
B. beenturnedout
C. turnedin
D. turnedover
网友回答
(答案→)A. turnedout
B. beenturnedout
C. turnedin
D. turnedover
解析：句意：毕竟事故证明成了好事情。turn out结果是，证明是；这里accident与turn out是主动关系；故排除B；turn in上交；turn over移交。根据句意故选A。