You'd better wake him up at once. He____
题型：选择题
问题：
You'd better wake him up at once. He _____ for eleven hours already. [ ]
A. has been asleep
B. has fallen asleep
C. has gone to bed
D. has gone to sleep
You'd better wake him up at once. He _____ for eleven hours already. [ ]
A. has been asleep
B. has fallen asleep
C. has gone to bed
D. has gone to sleep