Lastnightwhenhewokeup,heheardsom

发布时间：2020-07-25 23:28:01

Last night when he woke up, he heard someone ________in the next room.A.singB.singingC.to singD.to be singing

网友回答

B
以上问题属网友观点，不代表本站立场，仅供参考！