(2013·高考新课标全国卷Ⅱ)We very early so we packed the night before.
A. leave
B. had left
C. were leaving
D. have left
网友回答
A. leave
B. had left
(答案→)C. were leaving
D. have left
解析：选C。题干的意思是：“我们很早 ，因此我们前一晚上就把东西打包了。”根据句中的packed可知此处应用过去的时态，所以排除A、D两项。根据常识及句意可知，pack 要发生在leave 之前，所以排除B项，had left表示动作发生在“过去的过去”。故选C项，leave的过去进行时态表示过去将来。