◎ 题干
If you see someone dropping litter, you can ask him to ______.
                                      
[     ]
A. pick it up        
B. pick up it      
C. put it out        
D. put out it
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据魔方格专家分析,试题“If you see someone dropping litter, you can ask him to ______. [ ]A. pick it upB. pick up itC. put it out D. put out it…”主要考查了你对  【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。