The light is out in her room.she to bed A.must have gone B.had go_英语解答

The light is out in her room.she to bed A.must have gone B.had gone C.must be going D.must go
答案是选A的,为什么,我不懂.这个是考 have gone to的用法?

人气：144 ℃　时间：2019-08-19 19:47:14

解答

不是考have gone to,而是must have done的用法
must have done表示十分肯定的推断：
她屋里灯灭了,肯定是睡了.