How did it________ that you failed to ________ in time yesterday?A.e over;turn off.B.e on;turn overC.e up;turn downD.eabout; turn up
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D解析A e over过来，抓住turn off关掉；B eon快点，赶快，turn over打翻，移交给，翻身，翻阅；Ce up走近，发生，上升，讨论，出现turn down（被）向下折转，拒绝；De about发生，产生，改变方向turn up出现；到达。