下面一题是 2008 山东卷的高考题:
Thank you for all your hard work last week. I don’t think we _______ it without you.
A. can manage
B. could have managed
C. could manage
D. can have managed
记得前不久有位网友问过相似的问题,也是问 last week 的句子成分问题,当时有老师说它是定语,也有老师说它是状语,但我还是不明白。请各位专家分析指导,谢谢!