◎ 题干
What problems have you had        in the western part of the country?
[     ]
A.work
B.worked
C.working
D.to work
◎ 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“What problems have you hadin the western part of the country? [ ]A.workB.worked C.workingD.to work …”主要考查了你对  【动名词】  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。