问题补充:
By the time you arrive home, I , so please don’t make any noise when you come in.
A. shall have been sleeping
B. shall have slept
C. shall sleep
D. shall be sleeping
答案:
A. shall have been sleeping
B. shall have slept
C. shall sleep
D. shall be sleeping
解析:考查时态。根据题意,等到你到家的时候,我将正在睡觉。