◎ 题干
—Who is the young man in the air force uniform in the picture?
—My brother. He has _______ the army for two years.
[     ]
A. joined
B. left
C. been in
D. come to
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—Who is the young man in the air force uniform in the picture?— My brother. He has _____ the army for two years. [ ]A. joinedB. left C. been in D. come to…”主要考查了你对  【现在完成时】【介词】  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。