Harry Potter is interesting story and we all like it.A. aB. anC. theD. /

问题补充：

Harry Potter is interesting story and we all like it.

A. a

B. an

C. the

D. /

答案：

A. a

(答案→)B. an

C. the

D. /

解析：考察冠词用法.一个有意思的故事,是泛指.英语中当不定冠词后的单词词首音素为元音时,不定冠词要用an,故选B.