问题补充：
.—What this time tomorrow morning?
—Er…, I’m not sure for the moment.
A. will you do
B. will you be doing
C. are you to do
D. are you going to do
答案：
A. will you do
(答案→)B. will you be doing
C. are you to do
D. are you going to do
解析：考查时态。句意：明天这个时候你将在做什么？哦，我此刻不确定。根据语境将来某一时刻正在进行的动作用将来进行时态。所以选B。
