◎ 题干
       from other continents for millions of years,Australia has many plants and animals not found in
any other country in the world.
[     ]
A.Being separated
B.Having separated
C.Having been separated
D.To be separated
◎ 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“ from other continents for millions of years,Australia has many plants and animals not found inany other country in the world.[ ]A.Being separated B.Having se…”主要考查了你对  【现在分词的被动式】【现在分词的完成式】  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。