—Professor Smith can I meet you at 10 o’clock tomorrow morning?—Oh I’m sorry. I a lectur

问题补充：

—Professor Smith, can I meet you at 10 o’clock tomorrow morning?

—Oh, I’m sorry. I a lecture at Hunan Normal University.

A. give

B. am giving

C. will give

D. will be giving

答案：

A. give

B. am giving

C. will give

(答案→)D. will be giving

解析：表示从现在算起将来的某一时间正在进行的动作或按计划、安排将要进行的动作，用现在将来进行时，故选D。