◎ 题干
When he saw a ticket on the ground, he stopped ____.

[     ]

A. to pick it up
B. pick it up
C. to pick up it
D. pick up it
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“When he saw a ticket on the ground, he stopped ____. [ ]A. to pick it up B. pick it up C. to pick up it D. pick up it …”主要考查了你对  【不定式】【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。