◎ 题干
The government officials made a quick reaction _______ the news of the earthquake.
 [     ]
A. having heard
B. heard
C. being heard
D. on hearing
◎ 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“This ____________ myyoungdeer.[ ]A.isB.areC.be…”主要考查了你对  【介词和介词短语】【动名词】  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。