---How can you keep slim as a mother of two sons? ---I _______ in the gym for years.
A．have worked out
B．have been working out
C．have worked on
D．have been working on
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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 can you keep slim as a mother of two sons?---I _______ in the gym for years.A．have worked out B．have been working outC．have worked on D．have been workin…”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。
◎ 相似题
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