单选题
In ______ , the whole tangled saga is a classic case of serious allegations falling through the cracks between federal, state and local jurisdictions and between state lines.
【正确答案】
B
【答案解析】[解析] 短语in retrospect的意思是“回顾过去”，如：It was, in retrospect, the happiest day of her life. (回想起来，那是她一生最幸福的日子。)其他三项“A项countenance面容，支持；C项gauge规格，测量；D项injection注射”都不正确。本题空格处是说回顾过去。因此B项为正确答案。