—I'll come to attend your lecture after I finish my class tomorrow. —I'm afraid by then I

—I'll come to attend your lecture after I finish my class tomorrow.
—I'm afraid by then I will just have finished my lecture and ______ my guests in my office.
A. meet B. have met C. be meeting D. am meeting
【答案】C
【解析】
【详解】考查动词时态。句意：——明天下课后我会来听你的讲座。——恐怕到那个时候我正好已经完成了我的讲座并且正在我的办公室里会见客人。根据句意可知,此处表示在将来的某个时刻正在进行的动作,故需用将来进行时，且根据上文will后跟动词原形。故选C。