◎ 题干
—Your colleague’s spoken English is quite good,Amy.
—No wonder,as she________in the USA for two years.
A.worked B.has been working
C.had worked D.has worked
◎ 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“—Your colleague’s spoken English is quite good,Amy.—No wonder,as she________in the USA for two years.A.workedB.has been workingC.had workedD.has worked…”主要考查了你对  【一般现在时】【将来进行时】【过去完成进行时】【过去将来时的被动语态】  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。