◎ 题干
— Where is your mother?
— She ______ to Beijing on business, she will be back in a week.

A. goes
B. went
C. has gone
D. has been
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“— Where is your mother? — She ______ to Beijing on business, she will be back in a week.[ ]A. goes B. went C. has gone D. has been …”主要考查了你对  【实义动词的过去分词】【现在完成时】  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。