I wonder whether he is European or American?A. an….anB. an….aC. a….anD. a….a

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。