His first book next month is based on a true story.A. publishedB. to be publishedC. to pub

问题补充：

His first book next month is based on a true story.

A. published

B. to be published

C. to publish

D. being published

答案：

A. published

(答案→)B. to be published

C. to publish

D. being published

解析：考查非谓语动词。根据句意可知书还没被出版，故用不定式表示为发生的事情，选B。