I will come to attend your lecture at 10:00 tomorrow.　I’m sorry by then my lectur

问题补充：

--- I will come to attend your lecture at 10:00 tomorrow.

--- I’m sorry, by then my lecture will have ended and I my guests in my office.

A. is being met

B. will meet

C. will be meeting

D. will have met

答案：

A. is being met

B. will meet

(答案→)C. will be meeting

D. will have met

解析：此空用将来进行时表示将来某一时间正在进行的动作。