◎ 题干
—How long has your brother _____ in the army ?
—About five years.
[     ]
A. taken part
B. joined    
C. served    
D. attended
◎ 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“—How long has your brother_____ in the army ? —About five years.[ ]A. taken part B. joined C. servedD. attended…”主要考查了你对  【实义动词的过去分词】  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。