一本英语书用an，如An English book。
例句：
1、当我正在想该怎么办时，一本英语书出现在了我的面前。
As I was wondering what to do, an English book appeared in front of me.
2、但是19世纪的一本英语语法书中曾指出，分裂不定式不是习惯用语。
But in the 19th century, an English grammar book argued that it wasn't common usage.
3、也完成了一本英语书的样文翻译！
And I also have finished translating the sample of an English book!
4、桌子上有一本英语书吗？
Is there an English book on the table?
5、我们计划编辑一本英语书给外语大学使用。
We plan to edit an English book for use in foreign language colleges.
剪刀手七七
