You’d better not phone me between two and six o’clock this afternoon; I a speech then.A.

问题补充：

You’d better not phone me between two and six o’clock this afternoon; I

a speech then.

A. will give

B. will have been giving

C. will be giving

D. will have given

答案：

A. will give

B. will have been giving

(答案→)C. will be giving

D. will have given

解析：考查时态。根据语境及时间状语between two and six o’clock this afternoon，用将来进行时。句意：你最好今天下午2点到6点之间不要打电话给我，那个时候我将正在发表演说。