I'm tired out. I all afternoon and I don't seem to have finished anything.
A. shopped
B. have shopped
C. had shopped
D. have been shopping
网友回答
A. shopped
B. have shopped
C. had shopped
(答案→)D. have been shopping
解析：由后面的don’t seem to have finished可知购物还没结束，句意：所以应该一直在购，并且现在还在进行，故为现在完成进行时。shopped一般过去时，只强调发生在过去的动作，have shopped现在完成时，过去发生的动作对现在造成的影响，had shopped过去完成时，表示过去的过去。