【答案】2018年上海闵行二模The writer __________his new book in the hall of our university at the moment.

2018年上海闵行二模The writer __________his new book in the hall of our university at the moment.

A. introduces B. is introducing C. introduced D. would introduce

【答案】

B

【解析】

句意：此刻那位作家正在我们大学的礼堂里介绍他的新书。根据at the moment可知此处用现在进行时be doing sth。故选B。