问题
选择题
The light is out in her room. She ___ to bed.
A．can’t go
B．can’t have gone
C．must have gone
D．has gone
答案
答案：C
按题意，灯已经熄灭，所以选must have gone to bed（一定已经睡觉了）
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The light is out in her room. She ___ to bed.
A．can’t go
B．can’t have gone
C．must have gone
D．has gone
答案：C
按题意，灯已经熄灭，所以选must have gone to bed（一定已经睡觉了）