◎ 题干
—Meimei is              the difficult math problem.  
—I'm sure she'll               
[     ]
A. working on; work it on  
B. working on; work it, out  
C. working out; work it on  
D. working out; work it out
◎ 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“—Meimei isthe difficult math problem. —I'm sure she'll [ ]A. working on; work it on B. working on; work it, out C. working out; work it on D. working o…”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。