◎ 题干
The boy found a wallet on the ground and stopped _________.
A.picking it upB.picking up itC.to pick it upD.to pick up it
◎ 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“The boy found a wallet on the ground and stopped _________.A.picking it upB.picking up itC.to pick it upD.to pick up it…”主要考查了你对  【实义动词的单数第三人称形式】【实义动词】【动词短语】  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。