Please don’t phone him between 1 and 3 p.m. tomorrow. He a lecture then.
A. has delivered
B. has been delivering
C. will be delivering
D. delivers
网友回答
A. has delivered
B. has been delivering
(答案→)C. will be delivering
D. delivers
解析：考查时态。句意：明天下午1点到3点之间请不要给他打电话。那时他正在做演讲呢。根据tomorrow，可知要用将来时态；再根据then，可知要用进行时态。所以用将来进行时态。选C。