问题补充:
I wonder whether he is European or American?
A. an….an
B. an….a
C. a….an
D. a….a
答案:
A. an….an
B. an….a
(答案→)C. a….an
D. a….a
解析:不定冠词an用在以念元音开头的词之前,a用在以念辅音开头的词之前。
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