问题补充:
When Alice came to, she didn’t know how long she there.
A. had been lying
B. has been lying
C. was lying
D. has lain
答案:
(答案→)A. had been lying
B. has been lying
C. was lying
D. has lain
解析:句意:当Alice到达时,她不知道自己在那里躺了多久了。指从“过去的过去”某一个时间点开始的动作或状态,一直延续到过去,用过去完成进行时,选A。