◎ 题干
_______ in the story book that he had bought not long before,the boy didn't notice his mother
go into his room.
[      ]
A .Losing  
B. Lost  
C. Having lost  
D. To be lost
◎ 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“_______ in the story book that he had bought not long before,the boy didn't notice his mothergo into his room.[ ]A .LosingB. LostC. Having lostD. To be los…”主要考查了你对  【过去分词】  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。