Once they had seen the report from the medical examiner, the investigators did not doubt whether the body recovered from the river was the man who had attempted to escape from the state prison.
did not doubt whether the body recovered from the river was
have no doubt whether the body recovered from the river was
had not doubted that the body recovered from the river was
have no doubt whether the body recovered from the river was that of
had no doubt that the body recovered from the river was that of
doubt是名词,这里是不是过完,是两个一般过去时
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