He when the UFO arrived. A. was sleeping B. were sleeping C. has slept D. is asleep 查看更多

 

题目列表(包括答案和解析)

He _____ when the UFO arrived.

     A. was sleeping  B. were sleeping   C. has slept       D. is asleep

 

查看答案和解析>>


同步练习册答案