摘要：12. ---Do you want a lift home? ---It’s very kind of you, but I have a much late in the office. I overslept this morning because my morning clock . A. doesn’t go off B. won’t gone C. wasn’t going off D. didn’t go on [解析]D本题考查时态的用法.根据I overslept this morning 可知应用一般过去时.

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