My friend John insisted that he had seen alien the day before.A. aB. anC. someD. any

发布时间：2020-08-20 07:52:03

My friend John insisted that he had seen      alien the day before.
A. a
B. an
C. some
D. any

网友回答

A. a
(答案→)B. an
C. some
D. any
解析：本题的含义是我的朋友约翰坚持说以前他看见过外星人，修饰可数名词单数通常用不定冠词a或an，元音音素前用an，alien的第一个音为元音，故本题选B。
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