单选题 ______ as it was at such a time, his work attracted much attention.
A. Published B. Having published C. Publishing D. To be published

【正确答案】 A

【答案解析】[解析] 动词语态辨析
从句中的主语it指代的是主句中的主语his work，所以从句中的谓语须用被动语态，故排除B项和C项。D项中的动词不定式表示“即将发生的动作”，故排除。答案为A项。