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    Greenland is _______ huge island that is mostly covered with_______ thick ice sheet.

    A．the; /B．a; theC．a; aD．the; a

    C

    解析试题分析：考查冠词。第一空泛指一个巨大的岛屿。第二空仍然是泛指一块巨大的冰层。句意：格陵兰岛是一个巨大的岛屿，几乎被一个巨大的冰层所覆盖。故C正确、
    考点：考查冠词
    点评：冠词的考查集中在the表示特指；a/an表示泛指；同时要特别注意构成的一些固定搭配以及一些不使用冠词的情况如物质名词，抽象名词前面就不要冠词。

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