◎ 题干
I'm tired out. I _____ all afternoon and I don't seem to have finished anything.

A. have been shopping              
B. shopped
C. have shopped                  
D. had shopped
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据n多题专家分析,试题“I'm tired out. I_____ all afternoon and I don't seem to have finished anything.[ ]A. have been shoppingB. shopped C. have shopped D. had shopped…”主要考查了你对  【现在完成进行时】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。