问题补充:
—I didn’t take notes at yesterday’s meeting because I had left my pen at home.
—You mine. I it.
A. must have borrowed; wasn’t using
B. may have borrowed; wasn’t using
C. should have borrowed; hadn’t used
D. could have borrowed; wasn’t using
答案:
A. must have borrowed; wasn’t using
B. may have borrowed; wasn’t using
C. should have borrowed; hadn’t used
(答案→)D. could have borrowed; wasn’t using
解析:考查情态动词+完成时,must have done 表示对过去的事情肯定推测;may have done 表示对过去事情不肯定推测;should have done表示应该做某事而没做; could have done表示过去未完成的事情,根据句子意思,所以选D