Obama made history by being elected as first black president of the US.A. 不填；theB. a; th

发布时间：2020-08-17 03:30:55

Obama made      history by being elected as      first black president of the US.
A. 不填；the
B. a; the
C. a; a
D. the; a

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(答案→)A. 不填；the
B. a; the
C. a; a
D. the; a
解析：考查冠词：第一空不填，make history创造历史，第二空填the，修饰序数词，句意：奥巴马当选美国第一个黑人总统从而创造了历史。选A。
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