◎ 题干
It was ________ great shock to the world that two airplanes crashed into ________ World Trade Centre in New York on Sept. 11.
[     ]
A.a;/  
B.the;the  
C.a;the  
D./;the
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“It was ________ great shock to the world that two airplanes crashed into ________ World Trade Centre in New York on Sept. 11.[ ]A.a;/ B.the;the C.a;the D./;…”主要考查了你对  【不定冠词】【定冠词】  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。