There is ’b’ and ’X’ in the word box.A. a; an B. an; an C an; a D. a; a

发布时间:2020-08-22 22:08:22

There is     ’b’ and     ’X’ in the word box.
A. a; an   B. an; an       C an; a         D. a; a

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解析:b的词首音素是辅音,故不定冠词用a,x的词首音素是元音,故不定冠词用an,选A。
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