Thelightinhisroomisoff．He________

发布时间：2020-07-27 00:14:07

The light in his room is off．He ________ to sleep．A.may have goneB.can have goneC.could have goneD.must have gone

网友回答

D解析表示肯定的推测要用must have done sth．，只用于肯定句中；may have done意为“有可能做了某事”；can have done表示推测时，只用于疑问句和否定句中；could have done意为“有能力做某事却没做”。
以上问题属网友观点，不代表本站立场，仅供参考！